Why android does not connect to WI-FI: all errors and their elimination. Why doesn't Wi-Fi work on a laptop (netbook)? How to connect a laptop to a Wi-Fi router? Error “Windows could not connect to…” Function key to enable wireless communication

Owners of mobile devices based on Android operating systems sometimes, infrequently, however, face the problem that Wi-Fi does not work in some cases. What is the reason for this and how to get rid of such a problem, now it will be shown.

Wi-Fi does not turn on on Android: possible reasons

As for the manifestation of such failures, their reasons can be counted in abundance. However, among all their diversity, there are several basic situations that are more common than others.

If you make an approximate list of possible reasons why, for example, Wi-Fi does not turn on on a smartphone (“Android” on board), it will look like this:

• incorrect login password;
• incorrect date and time;
• failures in the device software;
• problems with settings;
• exposure to viruses;
• inappropriate firmware;
• incorrect router settings.

Based on this list, let's try to consider the method of troubleshooting each problem. In most cases, the solutions below fix the problem, as they say, one hundred percent.

checking the password

One of the most common reasons is an incorrectly entered password, which is set when connecting in a virtual network.

As it is already clear, if Wi-Fi suddenly does not turn on on the Android tablet, and the password was saved automatically during the previous connection, it may very well be that it was simply changed. To solve the problem, go to the settings of the very wireless module, delete the old password and enter a new one. IN last resort- just check the correctness of the input (maybe the keyboard layout was switched).

Date and time settings

Another reason (although quite rare) - incorrect settings date and time on the gadget itself. This in some, so to speak, abnormal cases can lead to such problems.

The method of fixing when Wi-Fi does not turn on on Android in relation to just such a situation is to go into the date and time settings and, in addition to manual settings, use the date, time and time zone of the network.

Software failures

It also happens that the problem is "buried" much deeper. So, for example, there are cases when the Wi-Fi button on Android does not turn on. What does it say? Yes, only that a critical failure occurred in the software responsible for the functioning of this module in the system.

As practice shows, it is not always possible to automatically correct this state of affairs. Therefore, many experts recommend installing special utility called WiFi Fixer. It is notable for the fact that nothing needs to be changed in its settings and parameters. The program is simply installed on the device, launched, and in the process of scanning for possible problems corrects errors automatically. True, and it doesn't always work.

Crashes in settings and master reset

If the previous methods did not help and Wi-Fi still does not turn on on Android, it is very likely that there is a violation in the operation of the system itself or in its settings. Correction of the situation, and at the same time the cure can be full reset parameters to the factory state.

At the same time, in the recovery and reset section, you must first check the box next to the auto-recovery line (after a reset, when you restart the system, all personal data and files, including applications, can be restored without problems). Then a hard reset is simply selected, followed by a system reboot. By the way, note that in this case you do not need hard reset, everything is perfectly restored and so (provided, of course, that the system is not infected with viruses and has the original firmware).

Viruses

Exposure to viruses can also cause Wi-Fi to not turn on on Android. Enough can be found today a large number of owners mobile gadgets, who prefer not to use standard anti-virus applications, believing that they are very heavy on system resources. Partly it is. However, modern mobile antiviruses can not only prevent the penetration of viruses into the system, but also block access to the device in case it is lost or stolen.

If a problem with viruses has already come out, it is worth installing the appropriate application. But what if the Wi-Fi doesn't work? Yes, very simple. Firstly, the program can be downloaded as an APK file from a computer, then transferred to a removable memory card and installed, after which the system can be fully checked. Secondly, the installation can be done directly from a computer terminal or laptop with a control application like PC Companion or something else, of course, using the gadget's connection using a regular USB cable.

What to install is a personal matter. However, among the variety of such applications, we can recommend 360 Security, which today is recognized as one of the most powerful, the same Dr. Web or McAffee. However, as is already clear, it is very difficult to advise something specific.

Firmware issues

Another reason that Wi-Fi does not turn on on Android may be an incorrectly installed unofficial

Here the situation is such that the firmware may be installed without problems, but it was originally designed for a different gadget model or has software flaws. Here you have to delete it and restore the factory shell. For different devices it is done differently. The only thing in common is that one cannot do without specialized software installed on a computer. In the simplest case, you can do it using the same universal PC Companion utility.

Router settings

Finally, it may well happen that the access settings have "lost" on the router. In this case, we consider a situation where the owner of both the router and the mobile device is one user, and there is no connection to an outside private network.

Pay attention to the moment that in the settings wireless mode on the router, in the channel selection field, the parameter (“Auto”) should be set automatically, in the mode line - “Mixed” (11 b / g / n), and MAC address filtering should be disabled (OFF).

If nothing helps

It remains to be added that if none of the above methods gave a positive result and Wi-Fi still does not turn on, most likely, the problem lies in the Wi-Fi module itself. The device will have to be taken to some service center to run a full hardware test. If the problem is here, the module will have to be replaced.

Wi-Fi is a technology wireless communication V local network. It is built into modern smartphones and tablets, however, sometimes Wi-Fi on Android does not turn on. Why do different types problems? There are three categories of reasons:

1. Incorrect phone settings;
2. Inappropriate Wi-Fi network settings;
3. Problems with the hardware that creates the access point.

Understanding the components of the network makes it easier to determine what needs to be done first. In most cases, neither a smartphone or tablet, nor a router or something that performs its function needs repair. Where to start?

• Check if Airplane mode is on.
• Make sure the date and time are set correctly on your phone. Can be set automatic time("Settings" - "Date and time" - "Time zone" (specify it) - check the box "Network time zone").
• Reboot your device.
• Delete the network profile from your mobile. Connect again.
• Check the settings of the Wi-Fi router, reboot it.

What else can be done? clean up RAM. Close programs running in the background. Approximate path: "Settings" - "Applications" - "Working". Stop running applications.

Restart your phone (it's not done like a normal reboot). Activate Airplane Mode and turn off your device. Make sure it's not charging and remove the battery. Let the smartphone be without it for 5-15 minutes. Hold down the power button for a minute. Insert the battery. Turn on your phone. Disable Airplane Mode. Try turning on WiFi. If the battery is non-removable, hold the power button for 10-20 seconds.

Turn off power saving mode. It is enabled by default on some devices. Sign in engineering menu. Open the dialer. On Samsung phones, the code will be *#0011#. It may vary on all models. "Menu" - "WiFi" - turn off the power saving mode.

There is a connection point, but the device does not detect it? A Wi-Fi network is created using a router, computer or phone. Their network settings are slightly different, but work on the same principle.

The network created by the phone. In the Android OS, all parameters are already predefined for them. You just have to reconnect in case the password has been changed. You can also follow general troubleshooting tips such as rebooting devices, recreating the network, updating firmware, resetting the device.

WiFi router. Change your router settings. Connect to WiFi from a computer. Open a browser. Write the IP in the address bar. Most likely, the numbers are on the sticker of the router or in the instructions for it. To find out the IP of the router on a PC, open the console (Win + R, type "cmd" without quotes). Write "ipconfig". Next to "Main Gateway" there will be an IP. Let's go back to the address bar. After entering the IP, press the "Enter" button. Then enter the router details (usually both values ​​are "admin"). Enter the router settings. We follow approximately this path: "Advanced settings" - "WiFi" - " General settings» - check the box «Enable wireless connection». Check if the issue is resolved. No? Change the connection mode to "Auto" or "802.11 BGNmixed" (devices with different standard Wi-Fi will be supported). There should be no checkmark next to "Hide hotspot". What to do if it didn't work? "WiFi" - "MAC filter" - turn it off. No way? Then remove your address from the "Deny" list or add it to the "Allow" section.

On PC. Access the Network and Sharing Center by right-clicking on the bottom right corner of the screen. "Change Extra options Sharing" - allow file and printer sharing - disable network access with password protection.

WiFi won't turn on

Android not connecting to wifi? Try following the tips below.

Install wifi app Fixer to troubleshoot this technology. Do not change the settings, just install the program - everything will happen automatically.

Connect button not working? Have you made sure that the Airplane mode is not enabled on your smartphone? The reason could be a malicious software. Check your device for viruses. good android antivirus is Anti AVL, Norton Security& Antivirus, Sophos Antivirus & Security, Bitdefender Mobile Security& Antivirus. Can't install them from your phone? Download the apk file to your computer - you can also access the Play Market from it.

Make sure apps don't get in the way. To do this, download safe mode(turn off the smartphone - turn it on - while the manufacturer's name appears, hold down the volume up or down button (depending on the model) and hold it until it is fully turned on). Wai Fai earned after that? So the problem is in the app. See which application is most active when the problem occurs. Disable it or stop all unnecessary processes.

Have you changed the version of Android to unofficial? Restore factory firmware through the recovery menu. You do not have a backup archive on a memory card? Look it up online or ask other users. Check the file for viruses. Go to the recovery menu - "wipe data / facroty reset" - "wipe cache partition" - "installzipfromsdcard" - specify the path - confirm the solution.

Nothing worked? The radio module may be broken. You need to take the device to a repair service center (which is preferable if you have a valid warranty card) or to an experienced proven master.

I can connect, but the page does not open

Android users sometimes say: "I can connect from my phone, but there is no Internet." The simplest thing is to try restarting your smartphone or tablet. This will help if there is a small software glitch.

It's probably the access point. Make sure your internet bills are paid - your ISP may have suspended service due to non-payment. Check your router settings. It should not include a limit on Internet traffic or prohibit visits to sites that you need. Most often this problem happens during the use of public networks. There is a possibility that the problem is on the provider's side. If nothing from the article helps, it makes sense to contact him or official sources for information.

Forget network like this:

1. Open "Settings" - "WiFi".
2. Hold down the name of the network until a menu appears.
3. Click Remove.
4. Disable WiFi. Wait a few seconds.
5. Turn on again. Wait for the network to show up.
6. Enter the password (if set) and connect to the access point.

Did not work? The proxy must be disabled.

• Go to "Settings" - "WiFi".
• Hold down the name of the network and click "Advanced settings" (or "Advanced").
• The value of the "Proxy Server" string should be "None".

Several network users may mistakenly be under the same IP address, making operation impossible. How to fix it?

1. Disconnect all connected devices from the router.
2. Turn off the router for a minute.
3. Attach one device to it.
4. Does the WiFi work? Connect other devices.

Authentication error

It is not uncommon for users to see the text: "Saved, WPA/WPA2 protected." This happens after a failed connection. Later, "Authentication Error" may pop up. Why won't wifi turn on on android? Password entered incorrectly. Perhaps the settings WiFi networks unsuitable. Can write "Saved". What to do if you encounter this problem?

• Double-check that you entered the password correctly.
• Change the router parameters (how to enter them was said above). Change the mode from "Auto" or "n" to "802.11 b/g".
• Change the region to USA or Russia.
• In the router settings, set the authentication method to "WPA" and the encryption to "AES".
• Specify a free channel. Changing the bus to 20 MHz may help.
• Try to make the password for Wi-Fi only from numbers.
• Follow the path "Settings" - "More" - "Modem mode" - "Access point and pairing settings" - specify "IPv4 and Ipv6" - turn off the BT modem. Go to the "VPN" section, set a password and remove it. Activate and deactivate flight mode. WiFi should turn on.

We hope the problem has been fixed.

If WiFi does not turn on on Android, then this may be due to errors in the firmware and hardware malfunctions. Sometimes resetting the settings or flashing helps solve the problem. But in "severe" cases, it may be necessary to replace damaged components.

This article is suitable for all brands that produce phones on Android 10/9/8/7: Samsung, HTC, Lenovo, LG, Sony, ZTE, Huawei, Meizu, Fly, Alcatel, Xiaomi, Nokia and others. We are not responsible for your actions.

Attention! You can ask your question to a specialist at the end of the article.

The reason why WiFi does not turn on is software errors

The reason that Wi-Fi does not turn on may be a system failure. To fix it, restart your device.

Increase

If the problem persists after a reboot, remember when the error occurred. If the module stopped turning on after the firmware, then optimal solution there will be a re-flashing of the device with the installation of the official Android build for your model.

Wi-Fi cannot be enabled or disabled via - it only has a radio testing tool. Therefore, if any software failures occur in the wireless network, you should reset the settings or flash it. But before proceeding with these operations, do not forget to do backup data.

If the Wi-Fi icon in the settings turns green (or highlighted depending on the model), that is, the module is actually functioning, but the Internet is not working, check the following factors:

• correct date and time setting;
• the correctness of the entered access point password.

If the access point's password has changed, and WiFi settings module on Android stores old data, then the connection cannot be established. To change your password, go to wifi settings. You can enter a different password in the access point settings or simply delete it and then reconnect.

The reason for not turning on WiFi is hardware failure

If everything is in order with the settings and the system, but Wi-Fi categorically refuses to turn on, then you should contact the service center for diagnostics. Perhaps the problem is hardware. Common causes include:

• module failure;
• low-quality components on cheap devices;
• mechanical damage after impact or fall.
• moisture ingress.

Why does WiFi not turn on on Android TV

If Wi-Fi does not work or does not work well on the Android TV Box, then you can solve the problem by using a wired connection or using an external adapter.

In an effort to reduce the cost of the set-top box, manufacturers often sacrifice the Wi-Fi module by installing inexpensive controllers. Most models come with a wireless connection as a nominal option that can be used for web surfing and other tasks that do not require high speed transmission. Therefore, users have to look for other connection options: pull a wire or organize a connection through a cable and a router.

If you bought a laptop, then you probably expected that you would use it to access the Internet. However, if wifi does not work on your laptop, then you will not be able to connect to the network without wires. Therefore, if such a problem occurs, it is better to know in advance how to behave in order to quickly fix 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 to connect to the wireless network through any other device - smartphone, tablet, game console. If a connection is established on another device, then the laptop correctly stopped working.

If no device connects to the wireless network, then the cause of the problem should be looked for in the router. To get started, try to reduce the distance and remove all obstacles between the router and the laptop. Check that the wireless indicator on the router is on. If the light is off, check your Wi-Fi settings::

What should I do if the above steps did not help, and the wireless connection is still not established or is slow? Call your ISP to see if there is a problem on their end. If the operator reports that everything is fine, reset the router settings to factory settings, and then re-establish the connection, after updating the router firmware.

Laptop problems

If you made sure that the router is working fine, but there are no available connections on the laptop, then you should check if the wifi module is enabled on the laptop. If the module is enabled, the indicator on the front of the laptop should be lit. If it does not work, try turning on the Wi-Fi module manually using the function keys - for example, Fn+F2. On different models keyboard shortcut is different; some models have a hardware wifi button. Carefully inspect the laptop case and find the button with the image of the Wi-Fi signal - click on it to turn on the adapter.

If the Fn button does not work, then you can turn on the module using the switch that is in the parameters wireless connection. On Windows 10, you'll need the Network and Internet section, which has a Wi-Fi tab.

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

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

If wireless connection is not present 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.

Wi-Fi driver check

On all laptops, be it Lenovo, HP or any other brand, the Wi-Fi module should be displayed in the device manager, even if the driver for it is not installed correctly. To check the wireless module driver, you need to open the "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 next to 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 the 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 arose after cleaning the laptop, then you need to check that the Wi-Fi module is installed in its place. Sometimes users who first disassemble a laptop for cleaning make careless movements - for example, when removing the display, they touch the antenna of the wireless module. Therefore, if the problem arose after cleaning the laptop, then you should disassemble the device again and carefully check that the Wi-Fi module is in place and is properly connected.

Sometimes resetting the BIOS helps. Why suddenly in basic system I / O error appears, it's hard to say. But to exclude this option, go to the BIOS tab "Exit" 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 trying to set up a connection with an access point, the message " Windows could not connect to...».

Usually the cause of such an error is a mismatch between the network parameters in the system and in 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 fix the problem, you need to remove the access point and update the list of connections.

These are the main reasons why the laptop does not connect to Wi-Fi. If none of the methods helped, it makes sense to contact the service center - perhaps the reason incorrect work The Wi-Fi module is a hardware failure that cannot be fixed on its own.

Wi-Fi technology is very widely used in the life of a modern person, because it allows you to easily and quickly solve the problem of connecting to the Internet without using conventional wires. This is especially true in the case of using laptops, with the help of which you can access the Internet in any convenient place due 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. The reasons why on laptop computer may not work Wi-Fi, there are quite a few. 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 those that can be completely eliminated on your own. Let's consider them.

Problem with 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 exclude 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 WiFi adapter– from another laptop, smartphone, tablet, etc.

If Wi-Fi does not work from another gadget, then the problem lies precisely in wifi router e 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 this diagnosis, it can be precisely determined 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 connection adapter is enabled on the laptop. Almost all modern models have indicator lights. WiFi work module and for its hardware inclusion there are special key combinations.

Usually, a lit indicator indicates that the module is on. If the indicator does not glow at all or shines in red, then the Wi-Fi does not work precisely because of the wireless network adapter. It needs to be enabled.

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

To enable the module of such a network, press the key combination Fn and one of the system 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 enable Wi-Fi, you should try to press the standard button for specific model combination:
Fn+F3 for Acer;
Fn+F2 for Asus, Dell or Gigabyte
Fn+F5 on Fujitsu devices;
Fn+F12 on HP laptops.

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

Software inclusion

When Wi-Fi stopped working and its hardware inclusion does not give positive results, it is also necessary to implement its software inclusion, which is carried out directly from the operating system under which the laptop is running.

To implement software turn on WiFi, which 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, the network connection status icon is selected;

2. From the list that opens, select the item "Network and Control Center and public access” or “Network settings” depending on the version of the operating system;

3. The next step is "Change adapter settings".

Among the list of all existing connections Pay attention to the color of the "Wireless Network Connection" icon. If your WiFi does not work and wireless adapter disabled, the connection icon will not be highlighted. In this case, right-click on its icon, from the opened context menu select "Enable". In this case, the color of the connection icon should change.

At the same time, the wireless network adapter turns on, it remains to find the desired one 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 to solve the problem.

Installing and updating the driver

Quite often, the Wi-Fi wireless connection does not turn on due to the lack of a driver or when it is very outdated. To determine the presence installed driver, it is necessary from the context menu of the "My Computer" icon, which is located on the desktop or in the "Start" menu, select the "Properties" item. 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 manufacturer of the device must be indicated: Realtek, Atheros, Qualcomm, or something else.

Having found the desired item and clicking on it with the right mouse button, "Properties" is selected from the context menu. In the window that opens in this case, the item "The device is working properly" should be present. But even if there is a mark about the normal operation of the device, this is far from a guarantee that the correct version drivers and Wi-Fi turns on correctly. To check it, in the properties window wireless device go to the "Driver" tab and pay attention to the items "Date of development" and "Supplier".

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 among the list installed devices there was no wireless adapter.

If the wireless module is present in the list of devices, but is marked in yellow exclamation mark, this means that the device is disabled, causing the network to stop working. In this case, having opened the device properties window, you need to click the "Enable" button.

Another reason why Wi-Fi stopped working on a laptop may be that the power 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" icon;

3. In the window that opens, select the "High performance" or "Balanced" mode.

External signal obstructions

It should also be noted that the non-working wireless network can also be the result of more than just problems with the laptop. The wireless connection signal depends on some external factors that can weaken it. Ceilings, walls, floors, and similar obstacles significantly degrade the signal quality of the access point and laptop.

As you know, signal quality personal computer displayed as several marks - the more there are, the better the signal is. If the wireless connection level is displayed as 1 or 2 marks, then you can not 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 a 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 should be noted that all this software ways solutions to the problem, which will 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 - 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 not available, it is better to entrust the work to professionals.

One of the most common physical damage is an unconnected antenna wire to the proximity module. This problem occurs with laptops that were under repair or if their owner cleaned the cooling system from dust on their own. 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 itself. 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. This is most often 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 openings, the system will overheat, which can lead to the 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 not to encounter such problems, it is recommended to clean the laptop from dust at least once every one year: in this case, it will be possible to avoid repairing the laptop as a result of overheating of its components.

In the most advanced cases, the wireless adapter may even burn out. In this case, only replacing it with a new one will help. You can determine such a problem using the device manager, in which the module will simply cease to be displayed. When you try to install a driver for a wireless network, a message appears stating that the corresponding device is not installed in the system.

If nothing helped

If none of the tips above helped, you can use a simple, but at the same time 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 troubleshooting function that is in operating system Windows.

Thus, most of the above existing solutions problems related to the fact that Wi-Fi stopped working on a laptop. Almost all of these methods and recommendations can be used by anyone who has encountered 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 way out - to go to a quality service center for help, where they can solve any problems with a 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.