The wireless network on the laptop does not turn on. Why did WiFi disappear on my laptop? Causes

Any user of modern devices has ever experienced problems with Wi-Fi connection to the Internet. Not stable internet(or even its complete absence) is usually very annoying, you want the problem to be solved as soon as possible, but it cannot be solved on its own - you need to diagnose the problem and make efforts to solve it. Just today we will look at the most common wifi problems connections to the Internet and ways to solve them.

Why wifi disappears - reasons

Reasons that could potentially cause the lack of stable wifi connections(or connection in general) is incredibly large, this is a banal distance over an excessively long distance, and the presence of any radio interference in the coverage area of ​​the access point, and the presence of all kinds of shielding elements between the router and you. However, most often the network disappears due to software errors and hardware faults.

Diagnosis of the problem

If the Internet via wifi is lost, and there are no obvious signs of a hardware malfunction (a broken router antenna, for example), and getting close to the access point to a distance of 3-5 meters did not help, you should start looking for software errors. The mechanism for detecting them is individual for each specific OS and gadget. And yet, in the case of the most popular devices, such as laptops with Windows, smartphones running Android and iPhone, there are some universal recommendations that are almost one hundred percent likely to help detect software reason no signal.

If your gadget is running a less popular OS, such as Symbian, windows mobile or even some kind of “homemade Chinese OS” software diagnostics it is impractical to carry out, since the built-in mechanisms for this in such OSs, as a rule, are absent, and flashing the firmware will take much less time than poking around in the software kernel.

What to do if wifi disappears on a Windows laptop

Reasons for loss wifi signal on a laptop can be divided into three categories:

If, when you press the corresponding key on the laptop, the indicator wifi works module (the light next to which wifi is written or the corresponding icon is drawn) does not light up, then the problem is in the device itself. Check if the corresponding option is enabled in the BIOS. To do this, restart the laptop and press the corresponding key in the first 3-5 seconds of booting. As a rule, this is F2, F8 or F12. However, the initiation key BIOS boot there may be another - carefully read the notification that appears when you turn it on (usually desired button written below right). It is worth noting that in your BIOS version There may not be an option to enable the wifi module, so it is first recommended to read the user documentation or enter the combination of ““name of your laptop” wifi bios” into a search engine.

Wi-Fi disappeared in windows

If the wifi module and router operation indicators are lit but there is no signal, you should check whether wifi is enabled in Windows itself. Click right click the corresponding taskbar icon (bar at the bottom or top of the screen), then click: “Network and Sharing Center shared access”=>“changing adapter parameters”=>find the monitor icon with a wifi signal level scale=>“enable”.
Also, instead of right-clicking on the icon on the taskbar, you can click “start” => “control panel”.

Often the reason why wifi on a laptop disappears is faulty drivers. Right-click the “computer” shortcut, select “properties” => “device manager” and look for “network adapters”. Make sure the adapter is turned on. If there is a yellow triangle next to it, select “update drivers”.

Reason unstable work wifi may be high load on the router. Check and disable the most active users!

If the laptop sees other networks, but cannot connect to the one you are interested in, the problem is in the router settings. To diagnose it, you need to connect to the router using a cable or other device and dial address bar browser debugging address: “192.168.0.0”. In the window that appears, enter: “admin/admin”. Next, you should check whether signal transmission via wifi is turned on, and whether your device is on the “black list” of the MAC filter. You should also make sure that the router allows simultaneous connection several devices.

If you cannot connect to the router even through a cable, you should press the “reset” button on the router and wait 10-15 seconds.

If none of the above helps, try calling your Internet provider and ask if they receive feedback from your router (when it is turned on and working). If not, then most likely your router’s hardware has failed.

Wi-Fi on my laptop turns off constantly or periodically, what should I do?

If the signal on the laptop appears and disappears, no matter what access point you are connected to, most likely the problem is in the system power plan settings. To fix this problem, select the " maximum performance", but please note that this will affect battery life. Also, disable automatic hibernation - very common after resuming from sleep mode wifi adapter de facto remains turned off until a subsequent reboot.

My iPhone loses wifi, what should I do?

First, make sure that the problem is in the iPhone, and not in the router - often, users mistakenly believe that wifi is not working on the iPhone, although the reason is the access point. If your gadget sees other networks, the iPhone is working. Secondly, make sure you have current version iOS.
If iOS update did not help, click: “Settings” => “General” => “Reset” => “Reset network settings”.
If this doesn’t help, the iPhone is faulty.

If the gadget does not connect to any network at all, either reflashing it or going to a technician will help. If it connects to some networks but not to others, you should enable the bgn broadcast mode on the desired access point and try to set a static signal broadcast channel instead of the Auto mode. This can be done through the router settings menu (the address described above is 192.168.0.0). It is also worth noting that not all android devices support pairing with wifi, relayed through a laptop in forwarding mode (when the laptop acts as a router).

The Internet via wifi has disappeared, but there is a wifi network

If the device is connected to an access point, but there is no Internet, check the cord going to the router and contact your provider. If the problem is only on some specific device, try clearing your cache or using a different browser. You should also make sure that the device (not the memory card!) has at least 10% memory.

What to do if the wifi icon disappears

If the icon itself disappears, you should make sure that it is turned on wifi mode. If the option to turn on wifi is missing, or the icon does not appear, you will have to reflash your smartphone or update your laptop drivers.

So, the article discussed all the most common problems with wi-fi access on the Internet, and ways to solve them were also proposed. If you read this article, have faithfully followed all the recommendations given, but your wi-fi still does not work - feel free to take your device to service center, since you (most likely) will not be able to fix the problem at home.

3 more useful articles:

The Sidejacking utility is translated from English as " Left connection" and uses a classic attack called...

A unique program created specifically for wifi hacking, as well as WPA/WPA2-PSK and 802.11 WEP keys...

Very often I have to answer questions related to various problems that can be observed while connecting to wireless networks. When Wi-Fi does not work on a laptop. It is during the connection process that users encounter many problems. It turns out that the driver Wi-Fi adapter but it is not installed on the laptop, the question arises of how to turn it on, or how to fix the error that appears during the connection process. But even if everything is connected successfully, troubles may await us there too in the form of lack of access to the Internet.

I decided to write one big article in which I will collect solutions to all the most popular problems and errors. the main task- describe everything in simple language, and analyze all the options point by point, and of course write about solutions. This instruction is suitable for Windows 10, Windows 8, and Windows 7. As a rule, most solutions are no different in different version Windows. As for the laptop itself, there is also not much difference. The tips are suitable for models from ASUS, HP, Lenovo, DEL, DNS and even ordinary desktop computers with Wi-Fi adapters.

Based personal experience, comments on other articles, and features of the operating room Windows systems, I have identified 4 main problems that you may encounter when connecting to Wi-Fi on a laptop. I think the problem that brought you to this page fits exactly one of 4 points:

• First of all, we will figure out what to do if the laptop Wi-Fi doesn't work for a reason complete absence some wireless network settings when there is no "Wireless" connection in network connections network connection", or "Wireless network" (Windows 10). Also, when there is no Wi-Fi adapter in the device manager.
• Let's find out why next The laptop does not see the Wi-Fi network. There may be a problem when the connection icon is crossed out with a red cross, the inscription "No available connections". Let's consider different ways, which you can use to enable the wireless network.
• There are often times when The laptop sees the network, but does not connect to Wi-Fi. An error appears when connecting. Also, here I will include the problem when displaying neighboring networks, but the laptop does not see the home Wi-Fi network.
• Well, let’s not ignore the problem when Wi-Fi is connected, but the Internet does not work, but the sites do not open. Typically, a wireless network icon with a yellow exclamation mark and a status of “no Internet access” or “restricted”. True, there are times when there are no errors and everything seems to be fine, but there is still no access to the Internet.

Having described the solution to all these problems, I hope to answer the question in as much detail as possible: “why Wi-Fi doesn’t work on a laptop.” We will consider almost all cases and problems that you may encounter while connecting to wireless networks. To solve various problems and errors that will be discussed in this article, I have already written separate, more detailed instructions. I will provide links to them as I write the article.

Before you go through any settings, I advise you to look at the instructions for connecting to wireless networks: We have one, and a separate one. Especially if you are doing this for the first time. Perhaps they just didn’t understand all the nuances.

If you can’t connect, we’ll figure it out.

Checking the presence of a Wi-Fi adapter and driver

The first thing I advise you to do is check the operation of the Wi-Fi adapter. Make sure it works and the driver is installed. On at this stage there may be two problems:

• The adapter itself is simply broken (hardware failure). This happens very rarely.
• And a very popular problem - not installed wifi driver adapter. Or installed driver not working correctly. This happens very often on new laptops, or immediately after installation, or Windows reinstallation . If Windows 10 almost always automatically installs the driver on the wireless adapter (though not always working), then in previous versions On Windows this must be done manually. In one of the articles I already wrote,

To check this, just go to the device manager. It can be found through search. Or press the keyboard shortcut Win+R, enter the command (can be copied) devmgmt.msc, and click Ok.

Immediately open the tab " Network adapters". There should be an adapter, the name of which will be “Wireless” or “Wi-Fi”. This is the adapter through which the laptop connects to Wi-Fi. If you have it, then pay attention to the icon next to names. It should be the same as mine in the screenshot below.

If there is no wireless adapter:

• If you only have one adapter there, LAN card(LAN), and there is no wireless adapter, then most likely this means that you need to install a driver.
  You need to go to the website of your laptop manufacturer and find your model there (most often through search), go to the driver download section and download the driver for the Wireless (WLAN) adapter. Then, run its installation. In this case, the article will be useful to you. And separate.

If you have a wireless adapter, but Wi-Fi does not work:

• Right-click on it and select "Properties". Pay attention to what will be written in the "Device Status" window. There should be an inscription "The device is working normally."
• Again, right-click on the adapter and see if there is an "Enable" option there. If there is one, select it. After this everything should work.
• Try following the steps I wrote about in the article about. You can also try.
• Try reinstalling the driver (I provided links to instructions above).
• See other solutions from this article, which I will write about below.

It all starts with the adapter in the device manager. If it is not there, then there will be no Wireless Network adapter in the network connections. Also, in Windows 10 and Windows 8 there will be no buttons or sections for Wi-Fi settings.

Turn on Wi-Fi on a laptop

In most cases, all solutions to this problem come down to simply turning on the Wi-Fi module. Because it can simply be disabled. Turn on wireless connection possible in several ways. By activating the wireless module with a key combination, or a separate switch on the laptop case, or check and turn on Wi-Fi in Windows settings. Now we will look at all this in detail.

If wireless network is disabled on your laptop, then most likely the connection icon will look like this (depending on how and where the module is disabled):

In Windows 7 the icon will look a little different, but the meaning is the same.

And first of all, I would probably advise you to try turning on Wi-Fi programmatically. In the operating system settings.

How to do this in Windows 7

In Windows 7, as well as in the “eight” and “ten”, this can be done in network connections. Go to "Network and Sharing Center". From there we go to “Change adapter settings”. Do not pay attention that the screenshots were taken in Windows 10. In all cases, the steps will be the same.

In the new window, you need to right-click on the “Wireless Network Connection” or “Wireless Network” adapter and select “Enable”.

After that, look at the connection icon (on the notification panel). If a yellow star appears next to it, this means that the laptop sees available networks and you can connect to them.

If you do not see a wireless adapter in the "Network Connections" window, it is most likely not installed required driver. It needs to be installed. You can check this in Device Manager. I wrote about this above.

If Wi-Fi does not work on a laptop with Windows 10

A few specific tips for Windows 10: If the Wireless LAN adapter is turned on (see screenshot above), and the laptop still doesn’t see any available networks, then perhaps Wi-Fi is turned off with a button, or in the parameters. Let's check. Just click on the icon in the notification panel and the "Wi-Fi" button (if it's there).

Or in the parameters. In the "Network and Internet" section.

Well, if you have there are no these buttons and tabs in the settings, then see the first section of this article, or separate instructions:.

On Windows 8

First of all, check whether the adapter is enabled in the "Network Connections" window (shown above).

Open Settings. In the "Change computer settings" section, you need to select the " tab Wireless connection". Then turn on the wireless network.

We look at the icon with the connection status. The laptop may have already seen available networks.

Turn on the wireless network using the buttons on the laptop

If the methods described above failed to enable the wireless network, then you may be able to do it using hardware. Everything is very simple here. On almost every laptop, to turn on and Wi-Fi shutdown module has a dedicated key combination on the keyboard, or a separate switch on the body (rarely, but it happens).

Let's take an example right away. On my ASUS laptop To turn on Wi-Fi you need to press the key combination Fn+F2. Look like this:

This will always be the Fn key + a key from the F1 - F12 row. Here are the combinations for other laptops:

Dell: Fn + F2, Gigabyte: Fn + F2, HP: Fn + F12, Fujitsu: Fn + F5, Acer: Fn+F3

In some cases, this may be a special switch on the laptop case, which looks something like this:

Important point: function keys may not work correctly (or not work at all) due to the fact that the corresponding driver is not installed, which is responsible for the operation of these keys.

Here's an example: in Windows 7 I have all the drivers installed from the official ASUS website, and the Fn + F2 key combination actually controls wireless networks. And in Windows 10, I did not install drivers. And when you press Fn + F2, airplane mode is turned on and off.

It is not even the driver, but the utility that is responsible for the operation of the frequency function keys. You can download the utilities in the same section as the drivers. Download strictly for your laptop model and installed Windows. For ASUS laptops, the utility is called "ATKACPI driver and hotkey-related utilities".

I hope Wi-Fi on your laptop still works and you were able to connect to required network. And now we will look at the problems that you may encounter during the connection process.

Solving Wi-Fi connection problems

There are several most popular mistakes, which I will discuss below. We will not consider solutions to each problem, since I have already written about them in separate articles. I'll just give you the links.

If the laptop does not see home network WiFi

Provided that it sees neighboring networks, and other devices see your home Wi-Fi network. In this case, I advise you to first restart your laptop and Wi-Fi router. Then, you can try in your router settings. Install static channel, but not higher than 10. You can also change the name of your wireless network in the router settings.

If you have any other problem during the connection process, write about it in the comments. I'll try to suggest something.

If everything is connected, but the Internet does not work

Another trouble that you may encounter after the laptop has successfully connected to the wireless network. Most likely, there will be a yellow exclamation mark next to the connection icon.

Well, and accordingly the connection status is “Limited” or “Without access to the Internet”. There can be a lot of reasons, as well as solutions. I have prepared two separate articles on this issue. The first is for Windows 7, the second is for Windows 10:

• And a separate article about the problem

In addition, there may be a case when exclamation point There is no icon next to it, but the sites still don’t open in the browser. DNS error. I also wrote about the solution to this problem in the article. At the same time, the Internet may work in some programs. For example, in Skype.

Try running troubleshooting.

Most often, the following error messages appear in diagnostic results:

These errors are relevant for all versions of Windows.

Afterword

The situation itself when Wi-Fi does not work on a laptop is very ambiguous. It is very difficult to collect all the information on such a popular issue in one article. And when the article is very large, it is difficult to understand it. I tried to sort everything out and consider all the most popular cases. I hope you found a solution to your problem.

If nothing works, you can describe your case in the comments. I will try to help with advice. Well, share your solutions and useful information! Best wishes!

I often get asked questions about the problem when Wi-Fi disappears on a laptop or computer. It doesn’t just disconnect from the network, but the Wi-Fi adapter and the connection itself completely disappear. In Windows, everything related to Wi-Fi disappears. There is no wireless adapter in network connections. There is no "Wi-Fi" button, no icon in the notification panel and no section in the settings (if we are talking about Windows 10). In the device manager there is also no WLAN (Wireless) adapter, which is responsible for connecting to wireless networks. Well, accordingly, the computer does not see the Wi-Fi network, and there is no way to connect to it.

In most cases, the problem appears suddenly. Everything worked, turned off the laptop, turned it on and there was no Wi-Fi on the laptop at all. In some cases, such a nuisance may appear after Windows updates, or drivers. Or maybe after installing some program, or changing settings. From my own experience, I can say that it is not uncommon for Wi-Fi to disappear after cleaning the laptop from dust or repairing it.

Two important points:

• It happens that the laptop simply does not see a specific network, or all networks. In this case, the adapter is in the device manager, there are settings related to the wireless network, etc. This is a slightly different problem, which I wrote about in the article and.
• It may also be that he himself. In this case, the network is not available on all devices.

To find a solution, you must first understand the cause. Why did it happen that the laptop suddenly stopped seeing Wi-Fi networks and there are no settings related to this at all.

• You need to think and remember what you did before the problem appeared. Perhaps the solution will come on its own.
• Restart your laptop. If you have Windows 10, you need to reboot. Not Off/On.
• If you have a PC with an external Wi-Fi adapter, check if it is connected. Try connecting to a different USB port. Notice whether the light on the adapter is blinking.
• If Wi-Fi disappeared after cleaning or repairing the laptop, then most likely it was simply not connected (poorly connected, damaged) myself Wi-Fi module in the laptop. If you did this yourself, then disassemble the laptop and check the connection of the Wi-Fi module and antenna.

The Wi-Fi adapter has disappeared from Device Manager

If network cable is not connected, the icon on the notification panel will look like this:

If you go to adapter management, then most likely there will only be Ethernet (or "Connect via local network" in Windows 7). Well, maybe Bluetooth. And we need a “Wireless Network” or “Wireless Network Connection” adapter.

In Device Manager, open the "Network Adapters" tab. Most likely, you will not find an adapter there whose name includes “Wireless”, “WLAN”, “Wi-Fi”. And that's exactly what we need.

See if there is an unknown device in Device Manager. Or devices with yellow exclamation mark. If there is, then it is quite possible that this is our wireless adapter, which simply has problems with the drivers.

Pay special attention to the "Other devices" section. Is there something like "Network Controller" there?

If it is, then you just need to install the driver.

How to solve the problem and return the Wi-Fi adapter?

Unfortunately, as I wrote above in the article, in most cases this is a hardware problem. That is, a breakdown of the module itself. And programmatically (some kind of settings) it cannot be solved. You need to change the module itself, or connect an external adapter via USB. If it's a laptop.

All decisions come down to reinstallation Wi-Fi drivers. Perhaps if the adapter itself is working, this will help. Well you can more Windows reinstall. There may be something in the system, but it is very unlikely.

And so, let's return to the driver. You just need to go to the laptop manufacturer’s website, use a search to find your model and download the driver for WLAN (Wi-Fi). Then run its installation. If at the beginning of the driver installation an error appears that the device was not detected in the system, or something like that, then I am almost sure that this is a hardware failure.

Detailed instructions for installing drivers:

• AND separate instructions on installation and .

If you have tried everything, and in the device manager there are no adapters associated with wireless networks at all, including unknown devices, then you will have to take the laptop for repair, or connect USB WiFi adapter. There are small ones that are great for laptops.

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.

Step 1: Diagnose the source of the problem

If the connection to the wireless network is unsuccessful, the problem may not be in the client device (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 in .

Step 2. Hardware enable the Wi-Fi module of the laptop

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.

As a rule, all laptops are equipped with operation indicator lights. wireless module and have certain combination keys 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 have indicator lights on the front or side of the computer.

Less common is the location of indicators near the touchpad or on the monitor body.

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

For turn on Wi-Fi module uses a key combination that consists of special key Fn and one of the system keys from F1 to F12.

Look carefully at the system (function) keys and find the Wi-Fi connection icon on one of them.

On some older models, in particular from the company, 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

Asus: Fn+F2

Dell: Fn+F2

Fujitsu: Fn+F5

Gigabyte: Fn + F2

HP: Fn+F12

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

Step 3. Software enable the Wi-Fi module of the laptop

In addition to the hardware enablement of the wireless adapter, which we dealt with in the previous paragraph, there is also a 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 software enabling the adapter, we try to connect to . If the connection fails, move on to the next step.

Routers and access points with Wi-Fi are an integral attribute of the home and mobile internet for 10 years now. One day, the speed of the Wi-Fi network may be greatly reduced, and sometimes wireless connection disappears completely and for a long time.

The main reasons for disruption of the Wi-Fi network

Problems with wireless access to the Internet can be connected to for various reasons: router failures, incorrect settings computer or smartphone, interference from nearby equipment, etc. Viruses and even the actions of hackers can disrupt operation. In all cases, you need to identify the cause of the malfunction and try to eliminate it - first yourself, and if that doesn’t work, then turn to professional computer specialists.

The Wi-Fi network is visible to devices, but they do not connect to it

There may be several reasons why there may be no connection to a Wi-Fi network.

Wi-Fi network is not visible to devices

There are several reasons why the Wi-Fi network is not visible from a gadget or PC.

Wi-Fi on PC or tablet does not work after reinstalling Windows

There are several reasons - from hardware to software.

Video: WI-Fi does not work after Windows 10 update

Laptop or tablet is connected to Wi-Fi, but there is no Internet

The reasons are due to the fact that the router does not have Internet access.

There is Internet via Wi-Fi, but it turns off on its own

There may also be several reasons.

1. Inadequate Internet connection quality. If the provider has an unreliable communication channel or, in the battle for first place in the list of the most popular operators, has gone too far with the number of clients, the speed of individual users will be very low, the connection will often reconnect due to equipment overload, and incoming traffic will freeze. Previously, cellular providers suffered from this - at the initial stages of development of the 2G/3G/4G coverage area, demand, in the context of a collapse in the price of 1 MB of traffic, was far ahead of the construction and launch of new network facilities.
2. Freeze random access memory router (data buffer overload). Restarting it will help.
3. The device has overheated - any modern technology has protection against overheating of microcircuits. Both the CPU/RAM of the router or access point, as well as any of its microcontrollers that process incoming/outgoing messages via LAN or Wi-Fi data. It is advisable to turn off the router for at least a few minutes.

When bad signal 3G/4G and high speed Internet connection, the 4G modem used with the router may also overheat at the same time. Users of Android smartphones and tablets ( Yota subscribers), who distributed up to 40 GB every day via Wi-Fi (in the 2000s, these were Nokia and Motorola mobile phones connected via cable or Bluetooth), talk about cases when the device got hot like a kettle and turned off after every hour or two of downloading/distributing torrents on PC. The same thing happens with routers.

Wi-Fi does not work due to firmware glitches and viruses

No matter how simple, friendly and secure the firmware (firmware) of the router is, the router itself is not protected from malfunctions and viruses. Virus technologies disrupted work Apple gadgets, Android and Symbian. Virus code penetrated card machines, ATMs and access control systems at protected sites with the Internet, disabled the firmware in USB modems. Routers are also not insured - neither purely wireless from Beeline or Yota, nor home ZyXEL and TP-Link, nor points Cisco access, nor purely cable equipment used in facilities where any wireless element is prohibited by safety regulations.

Crashes in software can arise both due to inept flashing (by ignorance or accident, the power is reset at the time of updating the firmware in the router’s flash memory), or wear and tear of the flash memory chip itself (it’s impossible to even enter the router settings - underloading of the web interface pages in the browser) .

Virus activity is expressed in reprogramming the router settings: changing the IP DNS to the values ​​of a malicious server, substituting primitive passwords or turning off settings Wi-Fi security, switching wired protocols and operating modes cellular networks etc. To fix this, do the following.

Sometimes the virus changes the firmware file just before it is downloaded to the router. The solution is to remove viruses from your PC, using all means, including formatting the drive (of course, transferring valuable data to other media before doing so) and download official version firmware again from the manufacturer's website.

Slow Internet speed via Wi-Fi

The reasons are related to both the quality of network access and Wi-Fi communication parameters.

The last point requires clarification. The fact is that the Wi-Fi speed is switched by the router and the gadget automatically. Even if you forcefully turn on the maximum (802.11n or 150 Mbit/s), then if you go into the next room, you may lose your Internet connection - incoming and outgoing traffic“freeze”, websites will no longer open and messengers will stop working, even simple ones like ICQ, since the lower-level speed (802.11g, or 54 Mbit/s) will not turn on.

Different types of Wi-Fi networks support different speed data transmission

Check the auto speed selection in the router settings.

Advice for experimenters: without highly directional antennas and amplifiers, do not be located far from the router.

Video: how the provider’s speed is “cut” by the router via Wi-Fi

Other Wi-Fi errors and their solutions

Complete list of errors in Wi-Fi work is not limited to failures of the Wi-Fi repeater alone or problems on the provider’s side.

Network cable is not connected

The provider's network cable connected to the WAN socket may not be connected either to the router itself or to the entrance terminal. The reasons are as follows:

• damaged cable wires;
• broken RJ-45 connector retainer holding the cable in the LAN socket;
• power outage (the terminal has no autonomous power supply);
• malfunction of the LAN interface in the terminal and/or router (burnout network equipment throughout the entire section from electrical interference, an accidentally thrown network wire, static discharge when touching materials or a lightning strike on external cables);
• faulty LAN network card in a PC or laptop (it happens that the adapter in Windows is detected as working device, but the connection cannot be identified);
• viruses on PC that overloaded Windows performance(display of incorrect connection status or connection with a delay of minutes and hours).

The connection is already in use or not configured

Error 651 indicates that the modem or dedicated one is already in use or has not been configured.

If the router is not configured or is already in use by other processes, error 651 is displayed

Your connection needs to be removed and reconfigured. The instructions are suitable for Windows 7/8/10 - working with the setup wizard network connections V latest versions I wasn’t enriched with anything special.

After clicking the “Connect” button, a connection to the Internet will be established. If the problem persists, contact your provider's support. In the worst case scenario, reinstalling Windows helps.

Infinitely obtaining an IP address from the router

Without receiving at least a temporary IP address from the DHCP IP address numbering range of the router, the gadget or PC will not be able to access the network. And this is typical not only for Wi-Fi connections - assigning an IP to a computer or mobile device laid down during the creation of TCP/IP.

If the device freezes at the stage of obtaining an IP address, you need to check the router settings

You need to check the router's IP settings.

Checking Wi-Fi settings

Do the following.

You may need to restart the router again.

Checking services and connections in Windows

Ensure that all services, addresses, and protocols critical to the network are enabled correctly. For network Windows features The following services are responsible:

• DHCP client;
• DNS client;
• WLAN auto-configuration service;
• web client;
• IP auxiliary service;
• routing and remote access;
• server.

Do the following.

The connection of the router or cable modem to the network is broken

ADSL modems, popular in the 2000s, are actively being replaced by ONT modems (optical network terminal) - these devices support Internet speeds of up to 1 Gbit/s (using GPON technology), which differs from bandwidth ADSL modem 10 times. Already now Rostelecom and local providers provide Internet speeds of about 35–100 Mbit/s.

Blame the decline Wi-Fi speed may not only be underestimated external speed at the cheapest affordable tariffs, but also damage to optical cables in the area ONT-modem - home rack-terminal - the nearest provider node. The LAN cable between the router and ONT modem may also be damaged.

The router in access point mode acts as a LAN/Wi-Fi distributor

The user can diagnose the entire subnet of the router (the router itself and its external cable). In case of damage to cables and equipment, including ONT modem, telephone, IPTV set-top box and cables in the entrance, you should seek help technical specialists still the same Rostelecom. This can also be explained by the fact that if twisted pair can be restored/replaced independently, the subscriber simply may not have the tools to splice damaged fiber-optic lines.

Video: Tablet does not connect to Wi-Fi - overview lecture

Solving problems with Wi-Fi at home and at work it does not cause any particular difficulties. In many cases, the user will figure it out on his own. The help of a specialist is required only in cases where problems arise on the provider’s side.