On computer forums, you can find many messages from users looking for the reason that wifi does not work on a laptop. Unable to solve the problem on their own, some find a simple way out - refusing wireless Internet, being left without an excellent tool for rest and work.

Practice shows that there can be many reasons why wifi does not work, and the problem of troubleshooting is really relevant and requires detailed consideration. Diagnostics even by an experienced, professional master does not always help to immediately determine the origin of this type of damage.

The main, frequently encountered sources of malfunctions appear in connection with the introduction of certain changes in the functioning of the gadgets used. These include: reinstalling the operating system, replacing the router, a recent firmware update - it is because of them that you may encounter the fact that wifi has stopped working.

It is worth dwelling in more detail on common cases, with a careful study of which, you can try to fix the problem yourself. Restoring an Internet connection on your own depends on desire, perseverance, and opportunities that, in combination, will eliminate the need to seek third-party help.

Wi-fi does not work - wrong drivers or their absence

On a laptop, wi-fi may not connect due to “flying” drivers, after a certain series of manipulations with the operating system, so they are reinstalled to restore normal functioning. Manufacturers' official websites offer drivers for all models free of charge, and in a safe way to download.

If wifi does not work after installing a new windows 10, this indicates the need to reinstall drivers, the absence of which prevents normal operation. Updating the OS (operating system) often causes a lack of connection, so checking drivers is a necessary procedure.

To optimize your search, you can use the following sites of the most commonly encountered manufacturers:

  1. Lenovo - http://www.lenovo.com/ru/ru/
  2. Acer - http://www.acer.ru/ac/ru/RU/content/home
  3. HP - http://www8.hp.com/en/en/home.html
  4. Asus - http://www.asus.com/en/

Wi-fi does not work - insufficient signal strength or viruses

The correctness of the set parameters does not guarantee the smooth functioning of the router, especially if wifi does not work after installing windows 10, it is not always the fault of the OS or the laptop itself. The culprit for the malfunction may be a weak Internet connection signal, or a signal that is practically absent in its intensity.

Many modules detect the network, but are unable to connect to it due to a weak signal, which sometimes depends on the location of the router itself. The signal strength changes due to the presence of thick walls with insulation, massive finishing materials, sources of radio interference reproduction, structures containing metal elements.

This situation can be corrected by moving the router and installing it next to the router, if after that the Internet connection is unimpeded, the location of the device changes.

Virus infection threatens system files responsible for network operation, which can be attacked by malware, it often happens that even after reinstalling Windows, wifi does not turn on. Installing special utilities will help to audit the OS for the presence of viruses, correctly remove them from the laptop, but after its operation is completed, you will have to reboot the device and reconfigure Wi-Fi.

Wi-fi does not work - the inoperability of the node or module.

The built-in wi-fi module regulates the functionality of connecting a computer to the Internet, often it is it that is faulty. To determine its failure, it is recommended to contact specialized service centers for professional testing in order to determine the problem.

Self-opening of the computer, an attempt to influence the operation of the module, threatens with serious damage to fragile units or expensive computer parts, which will lead to more serious defects. If the built-in module cannot be repaired or replaced with an original copy, it can be replaced with an external USB device, this will save money, time to repair the damage.

Wi-fi does not work - a faulty network as the reason why Wi-Fi does not work.

It cannot be argued that it is the laptop that is often to blame for the lack of an Internet connection, sometimes it is a network malfunction that prevents the computer from connecting to it, it is because of this that a situation is created in which wifi does not work. This is easy enough to check:

  • connection. Other gadgets are connected to the existing connection, helping to determine that the network or computer is not functioning;
  • . After rebooting the router, communication can be restored, and it will function in standard mode;
  • setting. You can contact your connection service provider to update specific settings.

Having tried the available methods, you can easily understand why wifi does not turn on, but if after all the activities it is impossible to access the network, it is worth involving specialists with experience in the process.

Wi-fi does not work - home "resuscitation" on their own.

The last hope is always placed on the advice of experienced users who have tried all available methods, but to no avail, and if you could not figure out why wifi does not turn on on your laptop, you can try to revive it. Quick recovery with a wireless connection is possible after performing the following manipulations:

  1. Turning off the router. The power supply is turned off from the mains, and turns on again after 2-3 minutes;
  2. Reboot. Complete reboot of the OS, through the "Start" button, following the procedure, closing active programs, applications, dialog boxes.

Often, this procedure, carried out after wifi has stopped working, according to user reviews, leads to the restoration of a wireless connection, and a normal connection to the Internet.

Wireless adapter diagnostics makes it possible to determine why Wi-Fi does not work on a laptop, provide recommendations on how to fix this situation, for example, by simply resetting the settings, then turning on the network.

With periodic disconnections of the Internet connection, it is imperative to check the symptoms of this phenomenon, find out what caused it, for a quick, effective elimination of inoperability, which does not always require the intervention of service center employees.

In this article, I tried to consider all possible ways due to which Wi-fi may not work. If these tips did not help you, you can ask questions in the comments and we will give you an answer as soon as possible.