WiFi is a unique wireless communication technology that is incredibly popular all over the world. Nowadays there are very few people who prefer regular wired Internet. Connecting and setting up Wi-Fi is not difficult. But even in such a perfect system, sometimes errors occur due to which Wi-Fi stops working. The most common is a problem with connecting to the Wi-Fi router.

Some people are faced with a situation where the router is connected to the network and works, but does not distribute data: the computer cannot “see” the available network. Why does this happen? There may be several reasons for this:

lack of installed network drivers;

hardware type errors;

random shutdown of the connection to the computer - it is obvious why in this case the device does not work as it should;

Wi-Fi module malfunction;

Wi-Fi router malfunction.

There are other problems, but the ones listed above are the most common reasons, for which the device does not work. Therefore, we will focus on them.

Problem with drivers for network devices

Testing the WiFi module driver is carried out in the “Device Manager”. This section is located in the Start menu. You can also get to the section through the “My Computer” shortcut by right-clicking.

In the "Manager" you can see all the devices connected to the computer. We will be interested in network equipment. You need to switch to the branch with network drivers. If the branch is missing, this means that the drivers for the wifi adapter were not installed on the computer.

If there is a branch, the “!” sign may light up on one of the network devices. This means either the absence or malfunction of one of the drivers. Each of the problems is easily solved by simply reinstalling the software. Usually software located on the disk that came with your computer. The wifi adapter for device manager may be called Wireless Network Adapter. You can also download everything you need from the Internet using mobile connection(unless otherwise available at the moment).

How to check your wireless connection status

If everything is fine with the drivers, then the next step is to check the wireless connection. It can simply be turned off. Testing is carried out differently on different operating systems. But it all comes down to one thing: you need to get into the “Network Control Center”.

There is a universal method. You need to press Win+R, after which a window with a line will appear. In the line you need to type the command control panel and press Enter. This will open the "Control Panel". Here we go to “Network and Internet”, then to “Network and Sharing Center”. In the “Center” we will be interested in the “Change adapter settings” section located on the left. Clicking there will allow you to see the status of all connections that are available on the computer.

“Wireless connectivity” is what will be important to us. If the label is not colored but gray, it means there is no signal. You can start the connection by double-clicking the left mouse button. After startup, the computer begins to search for all available connections.

If they do not appear, then you can try to perform system diagnostics. It is carried out through the “Network Center” and the “Change adapter settings” item. You need to right-click on the “Wireless Connection” shortcut. In the window that opens, click the “Diagnostics” field. The computer runs the test on its own. Based on the result of the check, the user receives advice on further actions.

What to do if a hardware error occurs

A hardware error would indicate a problem directly within the network card. In a word, if the computer does not see the adapter for connecting to Wi-Fi, it means that this Wi-Fi device is not functioning. There are two main reasons:

the device is broken;

There was a problem with the wifi drivers.

The second option has already been described by us. However, if Wi-Fi drivers are available, but the computer continues to not see the adapter, this means a breakdown. One of the most common causes of breakdown is device combustion.

The cause of combustion may be overheating if the computer for a long time works at the maximum level of its capabilities. If we are dealing with a laptop, then this happens even more often, since many users forget the device on a soft surface that blocks access to the hole through which air flows for cooling. This problem can be solved by simply replacing components with similar ones.

It is worth keeping in mind that a lack of experience in independently manipulating computers can lead to even more detrimental consequences. This is especially true for laptops that have a more complex design. The best way out would be to contact service center, they will accurately determine the reason why the device does not work.
Hardware connection errors also include a disconnected antenna. Most often, this problem occurs in laptops or desktop computers that have been cleaned or repaired in some way. The specialist performing the procedure could simply have forgotten to connect the device, or he connected it incorrectly. This makes it impossible for the adapter to function normally, as it does not work normally and cannot normally catch the signal distributed by the router, even if it is close to the source.

A rather rare case is the antenna terminals becoming clogged with dust. This breaks internal contact. The solution to the problem is cleaning.

Why does the Wi-Fi router not distribute the Internet?

The connection problems described above relate to malfunctions in the computers themselves. But often there are problems that are related to the way the router works (or, more precisely, rather does not work) and does not distribute the Internet.

There are two main problems:

inability to establish a wireless connection;

lack of access when connected.

The listed failures can be easily resolved independently, without resorting to the services of specialists.

How to solve wireless connection problem

Testing how the router works begins by checking the status of the indicators that are located on the external panel of the router. During normal operation, the LED near the antenna pattern will remain lit or flashing. If there is no light at all, this means that the wireless module is not running on the router. On certain models there is a separate button that can be accidentally turned off by one of the family members.

The lack of a button makes solving the problem a little more difficult. You need to go to the “Wireless Network” section located in the router’s web interface. In the English menu this section is called “Wireless”. There is a checkmark next to the “Enable” box (in English – “Enable”). A click of the mouse can solve the problem.

It is possible that when the device does not distribute the Internet, the malfunction is related to the radio channel used. Most router models have an automatic configuration feature. If it is missing, you can try installing channel 1 or 6. They are the ones that should be suitable for our country.

It happens that it becomes impossible to connect to a wireless network, because the network displays a message about the incorrect password. It's worth checking the security settings in the web interface. Installed type encryption must be AES. The general security standard is WPA2-PSK.

How to solve the problem if there is no access when there is a connection

Quite often it happens that the connection begins to take place, but the process itself takes a long time. The status shows the message “Receiving IP”. After some time the connection is lost.

This means that network clients cannot obtain an address because the DHCP server is disabled. You can check this through the settings in local network. You will need the LAN section, where there should be a checkmark next to the DCHP parameter.

Access problems may arise due to incorrect operation of DNS servers. Wrong purpose for them network clients or complete absence destinations, as well as unstable operation of servers - these are the three main reasons.

The solution to the elimination problem is as follows. You need to use public DNS. They are provided by Yandex and Google. In the first case, you need to enter 77.88.8.8 in the settings, and for Google this value is 8.8.8.8. The data is entered on the computer in the Internet Protocol properties of any version of TCP/IP.

Conclusion

All of the above are troubles that you can get rid of yourself. In any other situations, it would be better to contact the provider’s technical support or professional technicians.

If your WIFI stops working, do not rush to turn to paid services of specialists or call specialists to your home. We have collected everything to help you useful tips and we present the most common problems and ways to solve them.

So, first of all, you need to make sure that there is no Internet via a wireless Wi-Fi connection. Insert the ISP cable into the network card directly. The Internet did not appear in this case either? Call your provider's support service. The problem is not Wi-Fi, but the lack of Internet due to technical reasons. Make sure your internet bills are paid on time.

What to do if the Internet works, but Wi-Fi does not work?

• Try connecting to the access point from other devices. So, if WIFI does not work on a laptop, but you were able to connect to the same network from a smartphone or tablet, then the problem is in the laptop.
• Perform a visual inspection of the router and all cables connected to it. The RJ-45 connector or plug may be damaged, or the antenna contact may come off. Try turning it the other way. Very often the router fails after severe thunderstorm(if you didn’t turn off the router in time and pull out the provider’s wire from it). Problems can be easily identified by the number of flashing lights. Get your owner's manual and find out which bulb does what.

If no visual damage is found, the reason is in the settings. In this material we will not provide complete settings. You will find them in the instructions and service agreement concluded with your provider. Let's consider only the subtleties that many miss.

How to configure a router correctly

First of all, use the setup instructions provided by your provider. Many users ask why there is no Wi-Fi, and the reason may be simple - the provider, for the purpose of modernization, may change some settings and not notify you about it. Therefore, it would be a good idea to call the support service back and clarify the network parameters.

Go to the settings menu by entering the address indicated on the router body into the search bar. What should you pay attention to here?

• Make sure the DHCP server is enabled. Otherwise, the router will not be assigned an IP address. To do this, go to the DHCP settings and make sure that the value is “Started” or “Enable” (if you have an English-language menu).

• The data transmission channel on the router is set automatically, but sometimes it is better to select it yourself. What are the consequences of an incorrectly chosen communication channel? Signal overlays. To check channel congestion, use the Free Wi-Fi Scanner (for Windows devices) or Wi-Fi Analyzer (for Android) applications. By setting Wi-Fi channels to “Auto” mode, you give the equipment the opportunity to independently select and assign the optimal channel.

Channel width is a parameter that determines maximum speed transferring data over a certain period of time. For 2.4 GHz routers the value is set to 20 MHz, for 5 GHz routers – both 20 and 40 MHz. Setting the width to 40 MHz in a 2.4 GHz router is highly not recommended. How to switch the router to 5 GHz? Operation at 2.4 GHz occurs when using b g n protocols. N supports high throughput. But b, g are compatible with devices released more than 5 years ago. Therefore, for a 2.4 GHz router it is better to enable bgn mixed mode. 5 GHz routers operate in 802.11a/g mode (but the Wi-Fi modules on the devices must also support it).

• MAC filtering provides ideal protection, but can become a serious barrier to connection. The function denies access to the router for specific devices. Or vice versa, you can specify a list of MAC addresses in the settings - gadgets that are not included in the list will not receive access. We do not recommend experimenting with MAC addresses unless absolutely necessary. Quite often, subsequently, because of this, many users do not connect to Wi-Fi and they cannot fix the problem on their own.

What to do if after Windows installations 10 Wi-Fi gone? The problem is solved by installing new drivers. They must be designed for a specific router model and for Windows 10 OS. Please note that not all manufacturers at the time of writing have released drivers that support Windows 10. You can try installing drivers for Windows 8 or contact the contact center of the company that produced your equipment.

Why doesn't Wi-Fi work on tablets and phones, but it works on a computer?

If you don't have Wi-Fi on your iOS or Android device, the following information will be useful for you to know. In many cases, the problem, again, is incorrect settings, although the possibility that the device is “buggy” cannot be ruled out. You can read about what to do if there is no Internet on a specific device running Android.

Before you start changing the settings, make a “backup” so that the result does not turn out “worse than it was.”

At the first stage, remove the Wi-Fi settings from the device that you are having difficulty connecting to. Otherwise, even if you change the router settings, the smartphone or phone will try to connect to the network with out-of-date settings.

So, what do we pay attention to:

• Network SSID quality. SSID is the name of the network and is what you see when you find your network in the list of networks available for connection. It must be unique. Do not use your router model name or common names. If the SSID is not unique and there is already an identical name, devices will have difficulty authenticating.
• You don't find your network in the list of available connections and are wondering how to connect to WIFI. It may not exist if the signal is weak or there are problems with the equipment. But also the tablet and phone will not be able to detect the network if you use closed (hidden) SSIDs. How can I determine if hidden SSIDs are being used? Make sure that the “broadcast SSID” option is checked.

• If Wifi does not work on your phone, you should also check your encryption settings. As a rule, manufacturers recommend installing AES - Personal WPA2 encryption. But some devices connect only via TKIP. So you should try different types encryption. Also don't forget about the password.

This completes the description of the most common reasons why there is no Wi-Fi. We hope that this material was useful to you and you solved your problem.

A huge number of people use it. It is both convenient and very easy. But no matter how simple the connection through this type of connection is, situations are still possible when WiFi does not work. And in order to restore the network, it is necessary to find the causes of the problems, which will be discussed.

Does not work WiFi due to the fault of the transmitter

A transmitter can be called a WiFi device to which other devices are connected - a WiFi modem, a WiFi access point, etc. Naturally, if this equipment stops broadcasting, then the end devices will also not work.

It is easy to determine the functionality of the WiFi transmitter - you need to go to the section where your equipment connects to the network. Both on phones, tablets, smartphones, and on any modern computers that support such a connection, this section should display the name of your WiFi network. This will make it clear whether your transmitter is working.

However, situations often occur that there may be several networks in the area. How do you know if yours is on the list? It’s very easy - just turn off the equipment and update the list - if one of the names disappears, it means it was your network. Now turn on the WiFi transmitter and update the list again. If a new name appears, it means this is your network.

So we figured out whether your device broadcasts radio. But if, when you click on the inscription, a connection occurs, but WiFi does not work (still), what should you do? This is a completely different question. Now we understand for sure that the WiFi network actually works, but if there is no Internet, this is already a matter of the settings of the transmitter itself (if the problem is its fault). The following situations may be to blame:

• The WiFi transmitter is not configured or configured incorrectly.
• The Internet is completely blocked on your device by viruses, antivirus, a non-working Proxy server, or an Internet provider (for technical reasons).
• You need to pay for internet.

To eliminate some of the above problems, a comprehensive check is required, which not everyone can carry out, but a call to the office of the Internet provider is enough to get started.

Does not work WiFi due to the fault of the end device

Very often, the reason for the inoperability of a WiFi network is the user himself or his equipment. If WiFi does not work on the end device, you should pay attention to the following:

Unfortunately, it is impossible to give all the reasons within one article. But in order for an ordinary user to find out why WiFi does not work, this fundamental knowledge is enough, which should give the reader basic concepts from which to build on in the future.

When working with a PC, laptop, tablet and other devices, users sometimes encounter the following problem: the router does not provide Wi-Fi, but the Internet is available on the computer. To correct the problem, you will need to perform several simple manipulations, using the recommended methods designed to debug the system and achieve the desired result. Let's look at the main situations when the router stops distributing wi-fi.

In addition to a computer or laptop, other devices are connected to the Wi-Fi network: tablet, smartphone, TV, etc. They all work on different systems, but they face the problem that the gadgets are not able to connect to the wireless network.

In order to fix this problem, you must first reboot the router and then try to connect again. If this method does not help, you need to re-create the wireless connection on the network device itself. The wi-fi network name must contain only Latin characters. You can also try changing the password and then reconnecting to the wireless network so that the router is able to distribute the Internet.

The device connects to the Wi-Fi network, but does not access the Internet

Often the problem when the router cannot distribute Wi-Fi arises due to failures in the device settings: for example, time/date desynchronization. In addition, it is possible to reconnect the personal network again. Sometimes resetting the settings to factory settings on the device connected to the Internet, as well as on the router, helps.

The cable is damaged or incorrectly connected

Often the problem when the router has stopped distributing wifi, but the Internet is working, is due to mechanical damage to the Internet cable or its incorrect connection.

First of all, you need to check whether the Internet cable is connected correctly. It should fit into the WAN connector of the router, marked in blue. You should also make sure that one of the LAN ports yellow color(directly for the computer’s network card) the corresponding cable is also connected.

The indicators on the router do not just light up, but, as a rule, signal that the Internet is connected, as well as the use of one of the ports. When network cables are correctly and securely connected, but the indicators do not light up, you should check the condition of the insulation for mechanical damage: breaks, kinks, etc. If there are such problems, the router, of course, is not capable of distributing the network.

Problems with the router

There are also options when there is Internet on the network equipment, but the router does not distribute the Internet via wifi. The causes of the problem are different, often associated with incorrect operation of the router itself. Some users believe that if the router stops distributing the Internet, the device stops working. However, it is worth debugging the settings of the adapter, as well as the computer itself.

Signs that indicate a router malfunction:

• The laptop or computer does not detect the Wi-Fi network.
• The connection is unstable. There are constant connection breaks and reconnections.
• The modem provides extremely slow speed.
• The device is connected to Wi-Fi and the router is working, but there is no access to the global network.

Thus, before replacing your router, which is unable to distribute the network, you should check and reconfigure it. The solution to the problem when the router for some reason does not distribute Wi-Fi, but the Internet is on the computer, is carried out not only by programs, but also by hardware testing.

If the wireless connection is not established, then the problem is in the wifi settings on the router. But if other devices work stably, the problem lies in the equipment making useless attempts to connect via wifi.

Each router has a special button that is responsible for turning the device on and off; using it, the router reboots. In order to check its physical health, you should press the button and make sure that the indicator with the Wi-Fi icon on the case lights up. If this happens, the router is technically sound and in all likelihood is capable of distributing the network.

There are a great many reasons for software problems when the router does not distribute the Internet via Wi-Fi, ranging from the features and settings of the network card to blocking the Wi-Fi connection by an antivirus. Among the most common problems are errors in the configuration settings of the operating system itself. This is especially true in cases where the computer was previously connected to another provider. To check or reconfigure on Windows 7 you will need to take the following steps:

• Open Network and Sharing Center.
• Click on the “Change adapter settings” button.
• Click on “Wireless Connection Properties”.
• Next, a small window will open where you should find the line “TCP/IPv4 protocol” and go to its properties.
• The above manipulations will open the network card settings. Here, opposite the corresponding lines, you should enter your own IP address, gateway and DNS server addresses, if known. Sometimes it is recommended to set markers on automatic address retrieval functions.
• After entering and confirming all changes, restart the computer. Internet setup is complete.

If the above manipulations do not have the expected effect, you need to dive directly into the interface of the router itself. This is necessary in order to change the address in the wireless adapter settings.

To do this you need to do the following:

This manipulation is performed in order to prevent the simultaneous operation of several routers, for example, among neighbors when operating in single channel mode. This channel related issue is quite common. For greater efficiency, it is recommended to try and compare the work on each channel.

In addition, you need to check whether the Wi-Fi distribution function is enabled on a specific router in its settings.

If the router's wireless network settings section does not contain a checkbox next to Enable Wireless Router Radio, it must be checked in order for the router to be able to distribute the network. In some situations, it may be wise to perform a factory reset and then completely reconfigure everything. To do this, you need to press and hold the button on the router for at least ten seconds.

Connected device problems

Computers and laptops sometimes have faulty network settings using incorrect addresses or parameters, which should be double-checked before connecting gadgets to the Internet. In addition, some antiviruses and other security programs can block connections and access to the Internet. In some situations, it is recommended to reinstall the wireless device driver.
Devices with various systems have different parameters, so often the problem when the router stops distributing Wi-Fi is not only in the connection settings.

Conclusion

This article discusses the situation when a working router for some reason stopped distributing wi fi (device network), and provides recommendations for troubleshooting a similar problem when the router works but does not distribute the Internet.

Wi-Fi not working on your laptop? Then you've come to the right place.

There are quite a few reasons when a laptop cannot connect to a Wi-Fi network. This article will provide an algorithm for solving this problem, taking into account the frequency of possible causes.

If the connection to the wireless network is unsuccessful, the problem may not be in the client device (laptop, netbook, ultrabook, etc.), but in the router settings.

To do this, you need to try to connect to the wireless network using any other device equipped with a Wi-Fi module - another laptop, netbook, tablet, smartphone, etc.

If you were able to connect to the wireless network, the problem is with your computer. If the connection fails, the problem is with the router. Next, we will look at the solution to each of these problems in detail and start with a case where a connection problem occurred with a laptop.

Return to menu

So, based on the diagnostics that we carried out in the previous step, it was determined that the connection problem occurred on one of the client devices of the wireless network.

Next, we need to figure out what state (on/off) the laptop’s wireless adapter is. As a rule, all laptops are equipped with light indicators for the operation of the wireless module and have a specific key combination to turn it on.

Note! A glowing indicator indicates that the adapter is turned on. The absence of backlight indicates that the Wi-Fi adapter is turned off.

Most manufacturers place indicator lights on the front or one of the sides of the computer. Less common is the location of indicators near the touchpad or on the monitor body.

On some HP models, the Wi-Fi module status light may be built into the power button on the keyboard.

To turn on the Wi-Fi module, a key combination is used, which consists of a special Fn key and one of the system keys from F1 to F12. Look carefully at the system (function) keys and find the icon on one of them Wi-Fi connections.

On some older models, in particular from Acer, you can find a solution for turning on the Wi-Fi module in the form of a two-position switch.

Such a switch is usually located on one of the sides of the laptop or on its front side. Below is a list of keys that can be used to enable/disable the Wi-Fi module on the most popular brands of laptops.

Acer: Fn+F3

Fujitsu: Fn+F5

Gigabyte: Fn + F2

After the adapter is turned on in hardware, connect to the wireless network. If the connection fails, move on to the next step.

Return to menu

In addition to hardware enablement of the wireless adapter, which we did in previous paragraph, there is also software enablement, which is performed directly in the operating system installed on the laptop.

To enable the wireless connection adapter in Windows 7, you must complete the following steps: on the notification panel (near the clock), select the Internet connection status icon “Network and Sharing Center”.

In the left column, select “Change adapter settings.”

In the list of connections, you need to pay attention to the indication of the “Wireless network connection” item. If the adapter is disabled, it will not be highlighted. To enable it, right-click on the icon and select enable.

The icon color should change.

Now you need to pay attention to the notification panel area. In the first case, the laptop's Wi-Fi adapter is turned on, but there is no network to connect to (usually this is a problem with the router). In the second option, the adapter is turned on and you need to find your network in the list of connections and connect.

After turning on the adapter software, we try to connect to the wireless network. If the connection fails, move on to the next step.

Return to menu

To check whether the driver is installed, you need to right-click on the “My Computer” shortcut, which can be found either in the “Start” menu or on the Desktop, select “Properties” in the context menu, and select the “Manager” menu in the left column of the window that opens devices".

In the window that opens, you need to find the menu “ Network adapters" and find the name of the wireless adapter containing part of the name "... Wireless Network Adapter" or "Wireless network adapter ...", where instead of "..." there should be the name of your wireless adapter, for example, Atheros, Realtek, Qualcomm.

In our case, this is Atheros Wireless Network Adapter. Right-click on it and select “Properties”. In the menu that opens, you need to make sure that “The device is working normally.”

Important! If you do not find the name of the wireless adapter in the “Network Adapters” menu, you need to install drivers. Drivers can be found on the disk that came with the laptop, or by searching the Internet.return to menu

In the first step of our article, we looked at how to determine with a high degree of probability the possible reason why it is impossible to establish a Wi-Fi connection.

Since there are quite a lot of routers, and even more firmware for them will be given in this paragraph general recommendations to fix the problem.

1. Try to reduce the distance between the laptop and the router. Try to ensure that there is direct visibility between the devices and as little interference as possible (walls, partitions, ceilings, microwave ovens, radiotelephone bases, etc.).

2. Make sure that the wireless network indicator on the router is lit.

3. Go to the router settings and make sure that:

Wi-Fi module activated;

SSID broadcast mode is activated;

The MAC address of a laptop that cannot connect is not included in the blacklist.

This concludes the list of possible reasons why it is impossible to connect a laptop to a Wi-Fi network. There are always some nuances that can be discussed in the comments.

Why doesn't Wi-Fi work on my laptop? You can find out by running system diagnostics. You will learn how to do this in the video presented.

geek-nose.com

Why Wi-Fi may not work on a laptop and how to fix it

Wi-Fi technology is very widely used in life modern man, because it allows you to easily and quickly solve problems with connecting to the Internet without using conventional wires. This is especially true when using laptops, which can be used to access the Internet in any convenient place thanks to the presence of a built-in Wi-Fi adapter.

That is why the situation when Wi-Fi does not work on a laptop leads to significant inconvenience and even some problems. There are many reasons why Wi-Fi may not work on a laptop computer. It is simply unrealistic to solve the most serious of them on your own without the help of specialists, but there are quite a lot of them that can be eliminated on your own. Let's look at them.

Is the problem with your laptop or router?

A fairly common problem is that the laptop has stopped connecting to WiFi networks, the problem is not with the laptop itself, but with the settings of the router, which distributes the network. Thus, the laptop can be configured correctly, but Wi-Fi still does not turn on precisely because it has nothing to connect to.

To rule out the possibility that the problem is related to this, you should try to connect to the network from any other device that is equipped with a Wi-Fi adapter - from another laptop, smartphone, tablet, etc.

If Wi-Fi does not work from another gadget, then the problem lies in the Wi-Fi router distributing the Internet. If the connection is successful, the problem is in the laptop and before solving it, you first need to determine why Wi-Fi stopped working.

Hardware enable adapter

Based on such diagnostics, it is possible to accurately determine that this problem arose precisely because of the laptop. When Wi-Fi does not work on it, you can try using several methods.

The first one is to check if the wireless adapter on your laptop is enabled. Almost all modern models have light indicators for the operation of the WiFi module and there are special key combinations to enable it in hardware.

Typically, a lit indicator indicates that the module is turned on. If the indicator does not light up at all or lights up in red, then Wi-Fi is not working precisely because of the wireless network adapter. It must be turned on.

Most often, such indicators are located directly on the keyboard, side or front panel of the device case. Sometimes they are located on the monitor body or near the touchpad.

To enable the module of such a network, press the key combination Fn and one of the system keys F1-F12. The specific combination depends on the laptop manufacturer. Usually, the corresponding antenna icon is located on the desired key. If it is not there, then to turn on Wi-Fi you should try pressing the standard combination for a particular model: Fn+F3 for Acer; Fn+F2 for Asus, Dell or Gigabyte; Fn+F5 on Fujitsu devices;

Fn+F12 on HP laptops.

After pressing the corresponding keys, we check whether the wireless connection module operation indicator lights up or whether it stops glowing red. After this, you should try to connect to the network again. If this does not help, move on to the next step.

Software enablement

When Wi-Fi stops working and turning it on in hardware does not give positive results, you also need to turn it on in software, which is done directly from the operating system the laptop is running.

To programmatically enable WiFi that has stopped working on Windows 7, 8 or 10, you need to perform the following sequence of actions:

1. On the notification panel, which is located near the clock, select the network connection status icon;

2. From the list that opens, select “Network and Sharing Center” or “Network Settings” depending on the version of the operating system;

3. The next step is “Changing adapter parameters.”

Among the list of all existing connections, you need to pay attention to the color of the “Wireless Network Connection” icon. If your WiFi does not work and the wireless adapter is disabled, the connection icon will not be highlighted. In this case, right-click on its icon and select “Enable” from the context menu that opens. The color of the connection icon should change.

In this case, the wireless network adapter turns on, all you have to do is find the one you need in the list of available wireless networks and connect to it.

If, after such actions, Wi-Fi, which has stopped working, continues to be inactive, you need to move on to the next method of solving the problem.

Driver installation and update

Quite often, the wireless Wi-Fi connection does not turn on due to the lack of a driver or when it is very outdated. To determine whether the driver is installed, you need to select “Properties” from the context menu of the “My Computer” icon, which is located on the desktop or in the “Start” menu. Next, in the window that opens, select the “Device Manager” command from the menu on the left.

In the new window that opens with a list of connected devices, you need to find the name of the laptop’s wireless network adapter. Usually its name is “Wireless Network Adapter” or “Wireless Network Adapter”, along with which the device manufacturer should be indicated: Realtek, Atheros, Qualcomm or something else.

Having found the desired item and right-clicking on it, select “Properties” from the context menu. In the window that opens, there should be an item “Device is working normally.” But even if there is a mark indicating the normal operation of the device, this is far from a guarantee that the correct driver version is installed and Wi-Fi is turned on correctly. To check it, in the window with the properties of the wireless device, go to the “Driver” tab and pay attention to the items “Date of development” and “Vendor”.

In the event that the supplier is Microsoft or the date of development of the program is several years behind the current one, go to the official website of the laptop manufacturer and download the latest official version drivers.

The same should be done if there is no wireless adapter among the list of installed devices.

If the wireless communication module is present in the list of devices, but is marked with a yellow exclamation mark, this means that the device is disabled, as a result of which the network has stopped working. In this case, opening the device properties window, you need to click the “Engage” button.

Another reason why Wi-Fi stopped working on a laptop may be that the energy-saving mode is enabled, which prevents the wireless connection from working. To disable it, you need to do the following: 1. Open Control Panel;

2. Select the “Power Options” icon;

3. In the window that opens, select the “High Performance” or “Balanced” mode.

External obstacles to the signal

It's also worth noting that a broken wireless network can also be the result of more than just laptop problems. The wireless signal is affected by some external factors that may weaken it. Ceilings, walls, floors and similar obstacles significantly degrade the signal quality of the access point and laptop.

As you know, the signal quality on a personal computer is displayed in the form of several marks - the more of them, the higher the quality of the signal. If the wireless connection level is displayed as 1 or 2 marks, then you don’t have to try to use WiFi - in this case it will not work properly.

In this case, you need to move the router closer to your workplace, move workplace closer to Wi-Fi router or buy a new, more powerful router.

Other causes of Wi-Fi problems

The causes of problems with the functioning of the wireless network adapter described above are the most common and you can fix them on your own.

It is worth noting that all of these are software solutions to the problem, which can be solved by installing, reinstalling or updating the device driver, as well as performing some operations with the OS.

But often the problem with the operation of the wireless connection module lies in hardware errors. What are these errors? These are problems that are directly related to the board itself, most often due to its physical damage.

To fix such problems, you will need to disassemble the laptop. It is worth noting that such actions can only be performed if you have certain skills in this area. If such skills are missing, it is better to entrust the work to professionals.

One of the most common physical damages is an unconnected antenna wire to the proximity module. This problem occurs with laptops that have been repaired or if their owner independently cleaned the cooling system from dust. In such cases, the antenna is sometimes simply forgotten, as a result of which the adapter will not be able to establish a connection even near the signal source. To fix this problem, you just need to connect its antenna to the Wi-Fi module.

Sometimes the reason that Wi-Fi stops working is the usual overheating of the network card. Most often this is the result of the laptop being placed on some kind of soft surface. The thing is that at the bottom of the device there are holes through which cold air enters, cooling all the computer boards. By blocking these holes, the system will overheat, which can lead to failure of certain components.

Another common cause of device overheating is dust, which can prevent cold air from entering the cooling system.

That is why, in order to avoid such problems, it is recommended to clean the laptop from dust at least once every year: in this case, it will be possible to avoid repairing the laptop as a result of overheating of its components.

In the most extreme cases, the wireless adapter may even burn out. In this case, only replacing it with a new one will help. You can determine this problem using the device manager, in which the module will simply no longer be displayed. When you try to install a driver for a wireless network, a message appears stating that the corresponding device is not installed on the system.

If all else fails

If none of the tips above helped, you can use a simple, but often effective solution: restart both the computer and wireless router. Please note that after a reboot, the router turns on for up to 5-10 minutes before it starts distributing the network. Be patient. Also, despite the opinion of many skeptics, sometimes the problem diagnostic function found in the Windows operating system helps solve problems with a wireless network.

Thus, most of the existing solutions to problems related to the fact that Wi-Fi has stopped working on a laptop have been listed above. Almost all such methods and recommendations can be used by anyone who is faced with a similar problem, since this does not require any special skills. If nothing helps, and the wireless network does not start working, there is only one option left - go for help to a quality service center, where they can solve any problems with the laptop.

If the article did not help solve your problem and Wi-Fi still does not work, write in the comments, I will try to help.

computernotes.ru

Wi-Fi does not work on the laptop. How to reconnect

Connecting a laptop to a wireless, Wi-Fi, network does not always go smoothly. If you're having problems, check out step by step instructions that will help troubleshoot the problem. We recommend not to ignore this or that action, but to perform everything sequentially, as in the article.

Diagnosing the source of the problem

If your device, a laptop, fails to connect to Wi-Fi networks, the problem may be hidden in incorrect router settings. The first step is to find the source of the malfunction that leads to the connection error. This is what further “treatment” depends on.

To determine the source, connect your iPad, smartphone, computer (any other device) to a Wi-Fi network. If the connection on any of the devices is successful, the conclusions are obvious - the problem lies in the laptop. And if you fail to connect via a wireless network, as in the first option, it means that the router is not configured properly. We will consider both cases separately. So, what to do if the problem is in the laptop?

Hardware enablement of the Wi-Fi module of the laptop

The diagnostics carried out earlier (see step one) revealed the following: if you were able to connect, for example, a tablet or smartphone to the wireless network, then everything is fine with Wi-Fi, and the problem lies in the laptop.

To solve it, the first thing you need to do is check the status of the wireless adapter of the “problem” device.

It may be disabled, and therefore the Wi-Fi network does not work on this device. The adapter is connected with a specific set of buttons and shows operation using a light indicator. It is important! If the indicator is lit, the wireless module is enabled on the device. And if the light is off, the Wi-Fi adapter is disabled.
The indicator light is traditionally located on the front or side of the laptop. But there are some models of laptop computers that differ in the location of the indicator. For example, it can be located on the monitor (its body) or touch panel. And there is a third group of laptops. They have a light indicator, which shows whether the wireless network module is working or not, located on the power button (that is, built-in). To connect the wireless network module, a specific key combination is required. Any combination begins with the Fn modifier key, to which one of the functional keys is added - F1-F12. If you look closely at the function keys, you will see a wireless, wi-fi, network icon. Acer laptops differ from more modern models in that they turn on the wireless network module using a special two-position switch. If you have a laptop from this company, you will most likely find this switch on the side. In the screenshots below we showed how the Wi-Fi adapter is turned off or on on laptops from different manufacturers.

Asus: Fn + F3Dell: Fn + F2
Fujitsu: Fn + F5 Gigabyte: Fn + F2
HP: Fn + F12If the wireless network module is working, connect via Wi-Fi network. Are there still problems? So, follow the third step.

Software enablement of laptop Wi-Fi module

The second step we tried to fix the problem was to hardware enable the wireless network adapter. Now we will try to do this programmatically. And this means that our the following actions will be executed in the OS itself, the software that is installed on our laptop computer.

If you have operating system Windows version seven, follow these steps:

Step one: To enable the Wi-Fi module, go to the “Network and Sharing Center” section (where the time is shown).

Step two: On the left, click on “Change network module parameters”.

Step threeHere you will see a list of connections. The indicator should be lit when connected via a wireless network; if not, the module is disabled. Click on it and turn it on.
If the icon lights up, the Wi-Fi adapter is turned on. Step four: Go to the taskbar (where the clock and other icons are). As you remember, in the second step the problem was that the wireless module was working fine, but there was no network to connect to, which means the router was not configured correctly. The picture shows 2 connection states in the task area of ​​the desktop: the first - there are no available networks and the second - there are. With the help of the third step you have enabled the Wi-Fi adapter, now you need to find your network and simply connect. The module was successfully enabled using software methods, now try connecting to the Wi-Fi network. Is the problem still there? Follow the next fourth step.

Installing/reinstalling drivers for the Wi-Fi module

Now you need to check if the driver is on the system. In “My Computer”, click on “Properties”, and from there go to “Device Manager”.
A menu window will open. Here you need "Network Modules". You need to find the name of your wireless module. In this name you will see the word Adapter (if the operating system on the laptop is English language) or “Wireless network adapter” (if it is in Russian). For example, the name of the module will be: Qualcomm Wireless Network Adapter. Click on the name of the adapter and in “Properties” see how the device works. It should work fine. Important information! If in “Network adapters” you do not find the name of the wireless module installed on the laptop, it means there are no drivers. Download them from disk or find them on the official website of the manufacturer.

Troubleshooting connection problems in the router

In the first step, if you remember, we recommended that you, if possible, find the exact reason why the wireless network on your laptop does not connect. Depending on this, we proposed methods for eliminating the problem. What to do if the problems lie specifically in the router settings? We cannot consider each individual case, since there are a sufficient number of routers and the software (firmware) installed on them. Therefore, we will limit ourselves to only general tips that will hopefully help you solve the problem with connecting to a wireless, Wi-Fi, network.

1. Place the router next to the computer.
2. Check if the wireless network adapter is turned on (if the indicator light is on).

In your router settings, check the following:

• Is the wireless network module turned on?
• Is the broadcast channel enabled in the Service Set Identifier?
• Check if your laptop's unique identifier (its MAC address) is on the blacklist.

This is the list of problems we have that prevent us from connecting to a wireless network normally. For each case we wrote detailed guide, compliance with which should solve the connection problem. If something doesn’t work out for you, check carefully whether you correctly identified the cause of the malfunction and whether you followed the sequence of actions.

After performing the operating system diagnostics described in this article, you should solve the problem of connecting Wi-Fi on your laptop.

What OS do you have installed?

pc-helpp.com

What to do if Wi-Fi does not work on a laptop running Windows 7

Recently I came across a situation when, suddenly, out of the blue, my relatives’ WiFi connection on their laptop began to disappear. The situation is like in a detective film. During the day, the Internet works great, but in the evening the laptop simply refuses to search for networks and, accordingly, the connection is lost. I’ll say right away that the operating system was installed on the laptop windows system 7 (x86) SP1.

I just couldn’t understand the pattern. The laptop was plugged in and everything worked great for me. But if not for chance, to this day I would not have been able to find out what the reason was.

While in the room, I had to move the laptop to the kitchen and suddenly problems began. It was enough for me to disconnect the laptop from the power supply, and the Internet disappeared almost immediately. Hmm, a pattern was found, if there is no power from the network, then there is no WiFi, this is already a clue. Suddenly it dawned on me that in the power supply section there are different power consumption profiles, and under different modes, this or that piece of hardware is turned off. Thought, thought, but the theory needs to be tested.

I go to start - control panel - power section (if you can’t find it, then at the top right there is a type of display of sections, which needs to be changed from the “category” parameter to “large icons”. The power button will be at the very bottom)

In the power supply section, click on the “set up power plan” button (select the mode that is currently active for you).

In the window that opens, look for the section “Wireless network adapter settings” - “power saving mode”

In my case, “maximum energy saving” was set in the “on battery” option. This is where the dog is buried. When the power is switched to the battery, the laptop immediately cuts off the wireless Wi-Fi connection, and as a result the Internet turns off.

In general, I set both parameters to maximum performance and clicked OK. And literally after a couple of minutes the Internet worked fine, both from the battery and from the network. Problem solved!!!

As a result, I can say that when a problem arises with a laptop or computer, it is imperative to turn on Sherlock Holmes and get to the bottom of the problem logically. It turned out that Wi-Fi Internet does not work, precisely because of the power supply mode. And who would have thought. A bunch of stuff was written on the Internet, but not a single site gave a clear answer. But in the end, logic triumphed!

knopkastarta.ru

Wi-Fi does not work on a laptop: the most common problems and their solutions

If you purchased a laptop, you probably expected that you would use it to access the Internet. However, if your wifi does not work on your laptop, then you will not be able to connect to the network wirelessly. Therefore, if such a problem occurs, it is better to know in advance how to behave in order to quickly resolve the problem.

Checking the router

Before you begin to figure out why Wi-Fi is not working, you need to determine the source of the problem. Try connecting to the wireless network through any other device - smartphone, tablet, game console. If a connection is established on another device, then it is the laptop that has stopped working correctly.

If no device connects to the wireless network, then the cause of the problem should be looked for in the router. First, try to shorten the distance and remove all obstacles between the router and the laptop. Check that the wireless light on the router is on. If the light does not light, check your Wi-Fi settings:

What should I do if the above steps did not help, and the wireless connection still cannot be established or is slow? Call your provider to check if there are any problems on their end. If the operator reports that everything is fine, reset the router settings to factory settings, and then re-establish the connection, having first updated the router firmware.

Laptop problems

If you are convinced that the router is working normally, but there are no connections available on the laptop, then you should check whether the wifi module is turned on on the laptop. If the module is turned on, the indicator on the front panel of the laptop should light up. If it doesn't work, try turning on the Wi-Fi module manually using the function keys - for example, Fn+F2. The key combination is different on different models; Some models have a hardware wifi button. Carefully inspect the laptop case and find the button with the image of a Wi-Fi signal - click on it to turn on the adapter.

If the Fn button does not work, you can turn on the module using the switch found in the wireless connection settings. On Windows 10, you will need the “Network and Internet” section, which has a “Wi-Fi” tab.

If Windows 7 is installed on the laptop, then this method will not work. In this case, you will have to use an external keyboard with the Fn button (or the Windows on-screen keyboard).

Internet settings are reset after reinstalling windows. If problems arise after installing the system, then you definitely need to check the adapter operating parameters. In addition to hardware enablement of the module, it is necessary to activate it in the system. For everyone windows versions software activation is carried out according to one scheme:

If there is no wireless connection or it does not turn on, then you need to check whether the Wi-FI module driver is installed correctly. If the driver is not installed or does not work well, you will not be able to connect to the wireless network.

Checking the Wi-Fi driver

On all laptops, be it Lenovo, HP or any other brand, the Wi-Fi module should appear in the device manager, even if the driver is not installed correctly. To check the wireless module driver, you need to open Device Manager:

1. Right-click on the “Computer” icon.
2. Open the Manage tool.
3. Select "Device Manager" on the left.

In the manager window, you need to open the “Network adapters” section and find the Wi-Fi adapter. There should be no warning signs near it. The properties should indicate that the device is working normally. If everything is installed correctly, but the Internet does not work, you need to try updating the driver.

To avoid compatibility issues, you need to know your laptop model. Armed with this information, go to the manufacturer’s website and download the Wi-Fi adapter software in the “Drivers” section.

Other Possible Causes of the Problem

If connection problems occur after cleaning the laptop, then you need to check that the Wi-Fi module is installed in its place. Sometimes users who disassemble a laptop for the first time for cleaning make careless movements - for example, when removing the display, they touch the antenna of the wireless communication module. Therefore, if the problem occurs after cleaning the laptop, you should disassemble the device again and carefully check that the Wi-Fi module is in place and connected properly.

Sometimes resetting the BIOS helps. Why an error suddenly appears in the basic I/O system is difficult to say. But to exclude this option, go to the “Exit” tab in the BIOS and select “Load Setup Defaults”. Be sure to save your changes by pressing F10 and then "Y".

Another problem is when you cannot connect to the router, although there is a connection. When you try to set up a connection to an access point, the message “Windows could not connect to...” appears.

Typically, the cause of this error is a mismatch between the network parameters in the system and the router. Simply put, the network name or password has been changed in the router settings, and you are trying to connect using the old values. To resolve the problem, you need to remove the access point and update the list of connections.

These are the main reasons why a laptop does not connect to Wi-Fi. If none of the methods help, it makes sense to contact a service center - perhaps the reason for the incorrect operation of the Wi-Fi module is a hardware failure that you cannot fix on your own.