After working for many months and even years on the Web from one router, one day the user will notice that the Wi-Fi or cable connection suddenly disappeared. But any problem, except, perhaps, breakdowns on the part of the provider, can be solved unilaterally, on our own.

The PC or laptop does not "see" the router - what is the reason

Physical reasons include the following.

1. Breakdown of the LAN interface high voltage(for example, lightning over a twisted-pair cable passing over the roofs of private houses). This also includes static electricity during maintenance of LAN/ONT equipment (accidental contact with electrified clothing leads and bare wires of repaired cables).
2. Power failure of the router (using an adapter with a significantly higher output voltage, for example, from a laptop). At best, this will cause the voltage regulator to burn out, from which all other functional nodes of the router are powered. In the cheapest models of routers, the entire board can burn out - such a router is immediately changed.
3. Refusal wireless communication in the router due to overheating of the Wi-Fi radio subsystem chip or the processor on the router monoboard.
4. Lack of power (“sagging” power supply when using homemade or industrial system redundant power supply, for example, several PowerBank devices connected in series by output voltage - until they receive desired voltage nutrition). Lack of power (planned power outages, the adapter plug is not plugged into the socket, the adapter itself is out of order).
5. Internal short circuits or wear during operation in conditions of high humidity and extreme temperature fluctuations.
6. Damage to LAN cables (if using local network precisely over the cable), loose and bent pins of the LAN jacks in the router and in the network card of the PC / laptop.

The software reasons are as follows.

1. Router freezing due to overheating caused by working in extremely hot conditions. The reason may also be the natural wear and tear of the flash memory of the router and other microcircuits after many years of intensive work.
2. hit malicious code via LAN connection or via Wi-Fi from a PC changing settings. Only a reinstall will help here. Windows versions on a PC or tablet, from which the virus entered the firmware of the router, and flashing the router itself with its re-configuration.
3. Viral activity in the PC/laptop/tablet/smartphone itself, capable of seriously disrupting the operation of Windows/Android. OS in this case is reinstalled "from scratch".
4. The abundance of programs used simultaneously that slowed down the work of the PC / gadget.

In the last two cases, control over network settings is lost due to performance degradation.

Checking the integrity and correct connection of LAN cables

Most routers, such as TP-Link devices, have up to several LAN ports and one WAN port ("provider" input). There are two schemes for organizing a small local area network with public access to the Internet.

Whichever scheme you prefer, the network cables must be connected correctly. If something is mixed up, connect the cables according to one of these schemes and configure the router for its features.

Also pay attention to the integrity of the cable crimp in the RJ-45 connectors.

Do not cut the sheath outside of the connector retainer

Perhaps one of the wires has fallen behind - this is fraught with Windows error messages (" Limited access”, endless “Identification” or “Unidentified network” - even if the settings are correct everywhere and the router with the modem / terminal is 100% working).

Restart Windows and Router

The router is restarted using the Power button on the rear panel. But you can also turn the power adapter off and on.

Turn off and turn on the router by successive button presses

Using the web interface, TP-Link routers, for example, are restarted by the command " System tools- Reboot".

Restart from the web interface is available if there is a connection via LAN or Wi-Fi

Windows 10 is restarted by the "Start - Restart" command.

PC restart command

First of all, call-center operators of providers like to advise restarting equipment - but often the problem is still not in random malfunctions during operation, solved by rebooting.

Checking the Wi-Fi connection on the router

In routers, except for LAN and Wi-Fi, nothing new has yet been invented for local communication.

Other varieties - connection via infrared or Bluetooth - are inherent in the first place mobile devices, which implement the USB modem mode and virtual access point.

If a Wi-Fi wireless network is not visible on a PC or laptop, try connecting to it using an Android gadget. Solutions to the Wi-Fi problem are as follows.

Checking Ethernet ports and cables on a PC and router

If the PC does not connect via LAN, check if the router is visible from other PCs and laptops (if any).

1. If the connection is successful, check if the LAN adapter is enabled on this PC, and also coordinate its connection settings with the router settings on the router itself.

   

   Wi-Fi settings must be consistent with the router's DHCP

2. If there is no connection, check your PC for viruses and other malicious applications.
3. Check the integrity of the cable, connectors and serviceability network card LAN - when the connection is working, they should blink green and yellow LEDs located in the LAN socket on the PC.
4. Connect the cable from this computer to another LAN connector on the router - when the connection is working, the LAN jack should also light up on the router itself, and the corresponding LAN indicator (LAN-1 ... LAN-4) should light up on the display panel.

   

   ZyXEL router shows that the LAN ports in it and on existing PCs are working

5. If the test revealed a faulty LAN socket on the router (cable communication does not work on all PCs and laptops) - for example, the contacts of the LAN connector are bent or “clashed”, then use another LAN socket. If one of the computers is left “out of work” due to the failure of one of the LAN ports to which it was previously connected, purchase a simple LAN switch (or LAN-Hub), a Cat-5e cable and additional connectors , connect the Hub near the router using additional short cables, and connect both this PC and its “neighbor” to it.

   

   The number of LAN connections can be unlimited

6. In the event of a static discharge in the LAN switch of the router, all LAN sockets often stop working. In this case, use the connection of all PCs via Wi-Fi. If the Wi-Fi module also malfunctions (the entire router board burned out), replace the router itself.

Video: how to use a Wi-Fi access point if the WAN port is burned out

Replacing network cables

Depending on where and which cable is "broken", appropriate repair of the damaged line is needed.

A “twisted pair” with a simple break can be repaired by restoring the interlacing of wires (for example, the turn pitch of the “orange” pair differs from the pitch of the “green” or “blue” pair) as accurately as possible, as if the cable had not been damaged.

Changing the pitch of the turns of the pairs at the place of the break will reduce the speed of the line

In this case, there is a chance that the speed of 100 Mbps will not turn into 10 Mbps - if it is very important for you, for example, you use not only the Internet, but also often send multi-gigabyte files between PCs and gadgets over your local network, print large format maps and drawings high definition etc.

If the cable is so damaged that its use is impossible (the sheath is broken, the insulation of individual wires is worn or cracked from old age and extreme temperatures, the interlacing of pairs is broken in many places), a new cable is required. Or, if it is impossible to “forward” a new cable (there are no conditions, work is prohibited, etc.), and there are only one or two places of damage, special LAN adapters and simple switches for 3 LAN sockets are used.

LAN splitters will also help where network cable broken off

Especially often cables break and crack, in which not pure copper, but copper-plated aluminum is used as a conductive medium, the cable sheath and wire insulation are not polyethylene or PVC, but plastic compound with chalk.

The best Cat-5e cable is made entirely of copper wires, and each wire is a cable of the thinnest "veins", often with lavsan filler; cable insulation and sheath are made of heat-resistant plastic. Such a cable is used for street laying, it is resistant to repeated kinks, overheating and hypothermia, it will last for many years - but it also costs 2-3 times more. If you are used to investing in high-quality equipment and lines, creating a network for many years - use the best.

If you crimp the LAN connectors and solder the torn " twisted pair» costs nothing - then entrust the repair / replacement of optical cables to the specialists of your provider. Fiber optics are not copper wires: the slightest mistake due to inexperience will turn your 300-megabit connection from Rostelecom or Dom.ru into a slow-speed connection, where even browser pages will barely open, as on overloaded 3G peak hours -networks. Even if you have a special soldering iron for splicing fiber optic cores, you need skill.

Using other routers

If you have a router of another brand (when you changed it to the current one, now out of order) - connect it. For users who work part-time computer service, most likely, the once decommissioned equipment is lying around, which they use to diagnose failed routers and network cards brought in for repair by their customers.

You can buy a used router or access point (a model that is several years old)if you do not want to spend money on a new device. It is connected and configured in the same way as your previous device. Fairly outdated models may not have a WAN interface (and related settings), as well as operating modes in bridge and repeater mode (a simple point WiFi access with a LAN router without numerous settings), so it is used as the simplest LAN switch. Connect your LAN cables in the same sequence, complete the settings on the device and go online.

Resetting the router to factory settings

As an example - TP-Link routers. Everything is simple.

The router will restart. After a minute, the Wi-Fi network will be with default settings.

If it was not possible to reset the router (hanging, inaccessible settings) - use the reset button (it is protected by a tiny hole from accidental pressing).

Video: how to set up a TP-Link router after a factory reset

Any hardware and software problems in the home or office network, including failures in the router and on any of the internal lines, are solved. Otherwise, the network equipment itself changes, up to network cards and adapters. Excellent speed to you - and efficient work!

The laptop does not see wifi, what should I do?

In this article we want to tell you why the laptop does not see Wi-Fi and how to quickly restore access to the Internet on your own. If you encounter a one-time error in WiFi operation, you cannot set up a wireless connection on a new computer, or no router is displayed in the list of available connections, this article will help you quickly get rid of the failure and return a stable Internet connection.

Possible reasons

In building wireless connection Several system components are involved on a computer or laptop at once:

• network adapter. This element is present in all computers and is responsible for processing and forwarding any data over a local or global network. Also, the adapter processes all the signals of the Wi-Fi router. If the component does not work, in most cases, this is the reason why the laptop does not catch the Internet;
• Hardware drivers is a set of utilities that ensure the correct interaction between the hardware and software parts of a network connection;
• router(another name is a router) is the device itself that creates a wireless connection mesh through a provider's cable or modem.

It is enough to fail at least one of the above components, and you will no longer be able to connect to the Internet or face frequent interruptions in the connection.

There are cases when the laptop gives out the usual one-time failure and it is enough to restart it to fix the error.

There can be many reasons for a WiFi connection failure. Among them may be the following:

1 Router freeze or failure;

2 Wireless network adapter failure;

3 Outdated drivers or they are not installed in the OS at all;

4 Operation of anti-virus software;

5 Temporary technical failure on the provider's side.

Note that the problem of connecting to the global network can be expressed in the fact that the laptop does not see only one router or does not recognize any access points at all (at the same time, you are sure that other gadgets detect routers within a given radius).

Below is detailed instructions With step by step for each type of problem.

Turn on the WiFi module on the laptop

Often the reason why a laptop does not see available connections is its incorrect configuration. To get started, check the following options:

• Laptop location. The device must be within the range of the router. As a rule, standard routers are capable of transmitting a signal within a radius of 50 meters. Note that brick walls and other massive fences can reduce the range of a WiFi network signal by 30%-35%;
• Other gadgets connect to hotspots without problems? If your smartphone or tablet also fails to connect to Wi-Fi, the problem lies in the operation of the router. The computer does not see the network, but does the phone see it? Then you should check the operation of the component drivers and configure the router;
• The wireless discovery mode must be enabled. To do this, on the taskbar, move the pointer to the WiFi icon and click on it. If you see the following window "Wireless network is disabled", it means that network discovery is temporarily inactive on the computer.

To activate it, click on the indicated tile with the antenna icon:

Fig. 1 - turning on the wireless network

A window of available wireless networks will appear, in which you can select the desired router. Now the laptop sees the network:

Fig.2. Activation result wireless connection

Inclusion network adapter, does not always help in solving the problem, if this hardware component is not working properly, you will not be able to turn on the wireless connection. What and how to do, read below.

You can also activate the wireless connection using the keyboard. To do this, simultaneously hold down the Fn + F2 key. Depending on the laptop model, the F8, F10, F12 keys may also be responsible for turning on the network.

Note: In some laptop models, turning on the WiFi module can be done by a switch located on the side of the gadget.

Fig.3. Activating the wireless connection on the keyboard

On HP Pavilion laptops, you can control the wireless connection using the F12 key, which has a built-in indicator light. If this indicator is highlighted in red, Wi-Fi will not work. Press Fn + F12 to activate it. As a result, it will be highlighted in white.

Fig.4. Turn on the wireless light on an HP keyboard

Checking the functionality of the equipment

The laptop sees the network, but does not connect to the Internet? So the problem lies in the operation of the network equipment. First you need to check that the equipment is installed and working properly.

To programmatically fix the network card, you must run Windows 10 Device Manager. Open Device Manager by clicking right click mouse on "Start":

Fig.5. Opening Device Manager

A list of all hardware components connected to the PC will appear in a new window. Open section "Network adapters" and select the item labeled "Network Adapter" (it may have different full names, it all depends on the laptop model and type of network card).

1 Right click on the object.

2 Select "Enable" to activate the device if the equipment is turned off. If there are problems with the hardware, the system will prompt you to run the diagnostic tool.

Fig.6. Enabling the adapter in device manager

3 Double-click the object to access the hardware properties, and check the operation status in the Device Status column. The figure below indicates appearance properties window after power on (the system determines that the driver is installed correctly for the Network Adapter).

Fig.7. Checking the operation of the network adapter

Checking the operation of the router

The first and most banal reason why the laptop does not see WiFi is a one-time failure in its operation or the router is turned off. When the router is turned on, the indicators are always blinking.

Network equipment tends to freeze or fail, just like any other equipment. The solution to the problem may be a banal reboot of the router.

If you managed to establish a connection with the router, but the connection says “No connection”, we advise you to restart the router. To do this, first press the "Power" key (located on the back of the modem).

Then unplug the device from the mains and wait a few minutes. After a few minutes of waiting, plug the router into a power outlet and press the power button.

Fig.8. Enable / disable the router

Now recheck the list available networks on your laptop. In the list of objects should appear desired network. Following these simple steps will solve the problem in most cases.

Installing and updating drivers

If you have recently installed or reinstalled Windows, the problem may be the lack of the right drivers. Consider what to do if the laptop does not see Wi-Fi, but other gadgets connect to the router without any problems.

Notice operating system never shows information that there is a driver error or it is not installed. The user can only independently see such a picture in the "Device Manager", an exclamation mark may appear in front of the component, indicating a problem.

Fig.9. Device operation error in task manager

To install or update drivers WiFi adapter, do the following:

1 Go to Device Manager.

2 Right-click on the section "Network adapters" and choose "Update hardware configuration".

Fig.10. Automatic update hardware drivers

3 To install drivers manually, go to "Network adapters" and find the Network Adapter in the name of the equipment, right-click, then select "Update Driver".

Fig.11. Update the wireless driver

4 In the opened Windows Assistant, you need to choose how to install or update drivers.

Automatic search - Windows will independently search for and install the necessary software for the equipment.

Search this computer- choose this method in the event that there are already downloaded drivers for network equipment that must be specified.

Fig.12. Built-in Assistant window

If the automatic search for drivers does not bring results, then you can update the drivers by downloading from the official website of the laptop manufacturer. For example, for owners of devices from Hewlett Packard just go to the official website hp.com and go to the "Support" section - "Programs and Drivers".

On all official websites of laptop manufacturers, there is a section with drivers and programs for any model, bit depth and OS, just enter the name or select from the list, depending on the search for the necessary components. The method described in the article for the HP Pavilion laptop, but it is not much different from other laptops.

Another way to download drivers is to use the DriverPack Solution utility. With it, you can automatically install drivers for all connected devices:

Fig.14. DriverPack Solution window

After the driver installation is complete, turn on WiFi and check if the laptop finds the network.

Router setup

Often, users are faced with a problem from the category "laptop does not see my wifi network, but others see it." In this case, you should configure the router, since its parameters may not be compatible with the laptop, and this happens.

In addition to a short-term failure of the Wi-Fi router, the reason why the laptop does not see the network may be the incorrect configuration of the router or the incompatibility of some of its parameters with your PC. That is why the computer does not see a specific access point.

To configure the router, you should use another laptop or smartphone that connects to the access point without any problems.

Follow the instructions to check the router settings:

1 Connect the router to another device that "sees" it;

2 Now go to the browser (it doesn't matter if you work from a phone, tablet or other laptop - all settings fields and methods for changing parameters will be the same for your router);

3 V address bar enter the address of the local host - "192.168.1.1" (or "192.168.0.1", entering the address without quotes). As a result of entering the correct address, an authorization window will appear in the settings.

Standard values: login– admin and password— admin. If this combination does not work, look at the bottom cover of the router itself - it contains the data for entering the configuration window;

Fig.15. The bottom cover of the router

Fig.16. Entering the router settings

Next, the router settings window will open. Note that its interface differs depending on the device model, its firmware version, or the region of production. The first parameter that we need to find and configure for the compatibility of the router and the computer that does not see it is encryption type.

4 Go to the tab « Wireless mode» and in the "Protection" field, select the simplest type of data encryption - WEP. Thus, it will be easier for the computer to access the network. Standard WEP is sufficient for home use with a very low chance of your network being compromised by an intruder;

Note! In the settings of each router, there is also the ability to completely disable the protection of the access point. You SHOULD NOT turn off the encryption type, as this will lead to the consumption of your traffic by other people, a decrease in connection speed and an impressive increase in the amount of payment for the Internet.

Moreover, a law has been issued to protect each wireless connection with a password for access.

Fig.17. Setting up router encryption

The next parameter is the access password. We recommend that you check if you are entering the correct code word when trying to connect to a WiFi router on a laptop. To view and change the password, go to the tab again. "Wireless Mode"- "Protection" and in the "Key" field, check the code word (connection password);

Fig.18. Checking / changing the password for accessing the router

Also, the laptop may not see Wi-Fi due to a mismatch in the number of supported communication channels on the computer and the router. Try in your router settings different meanings this configuration, and after applying each of them, reconnect to the network.

Get in the window "Wireless Mode"- "Settings" . Select the number of channels. To begin with, it is recommended to try to connect the value "Auto", if it does not work, set the value manually, choosing the appropriate option. This WiFi setup will help solve all the problems that are associated with the incorrect operation of the router.

Fig.19. Selecting the number of communication channels

Conclusion

Now you know what to do if WiFi does not work on a laptop. You can solve the problems and errors of a non-working Wi-Fi network using a step-by-step check of the operability of all network components and their correct configuration.

To begin with, you should check the simple reasons: whether the router is turned on or not hung up, whether the drivers are installed / updated, look at the correct password in its settings. To set up compatibility between a laptop and a router, change the type of encryption or the number of communication channels used.

If the laptop does not catch any wireless networks, activate the connection setup window or troubleshoot the network adapter.

Thematic videos:

The laptop may suddenly stop seeing the Wi-Fi network - both yours and, in principle, all access points nearby. Why does this happen and how to quickly fix the error?

"Laptop" does not see your Wi-Fi network - why is this happening

The error can manifest itself in different ways: when only yours is missing in the list of points, or when the list of networks disappears altogether. In the latter case, the network panel displays the notification “No available connections”, and on the network icon next to the date in the lower right corner there is a red cross.

If you suddenly get the message "No connections" on the network panel, try restarting your computer first

If there are no connections at all in access, then the matter is most likely in your PC:

• the network adapter has failed - restart the PC and router (disconnect it for at least 20 seconds), if necessary, run the built-in diagnostic tool;
• the Wi-Fi function was turned off (by the system, by a virus, or by accident by the user);
• drivers wireless adapter were corrupted (again, a virus could be the cause - be sure to check your PC for malicious codes, and then reinstall the driver using the instructions below);
• the drivers of the same adapter did not receive updates in time - we set latest version(it is advisable to download the latest version from the official website of the "note");
• the service for WLAN configuration has been deactivated.

These reasons should be kept in mind only if you know that nearby (neighbors, for example) have their own routers that your “laptop” saw. Otherwise, also accept methods with router configuration.

If there is only one access point, then something is wrong with your router settings

If the list contains any access points, except for one of yours, feel free to go to the settings of your router. Most likely, the problem is in it:

• the wrong communication channel is established;
• there was a conflict of names of routers (if there are identical routers in the radius of action);
• failure of the network device - here we reset the router settings through the Reset function (reset to factory settings) and, if necessary, configure it again (many routers have the option quick setup, so it will be easy to carry it out).

Before following the instructions below, place your laptop closer to the router and connect to the Wi-Fi network through another device, such as a smartphone, to make sure that the router is actually broadcasting a signal.

If all visible access points have disappeared from the network panel

We will tell you in order what needs to be done if suddenly all the nodes that the computer saw before disappeared from the panel.

We start diagnostics

Windows fixes many problems on its own with built-in diagnostic tools. To run the Network Module Test Tool, do the following:

1. We call the context menu of the network icon on the bottom right using RMB (right mouse button) - click on the first line "Diagnosis of problems". Or follow the link "Diagnostics" on the network panel itself, where a message is written about the lack of connections.

   

   Click on the first line "Diagnosing Problems" to launch the tool

2. We are waiting for the completion of the search for problems on the PC related to Wi-Fi.

   

   Waiting for the troubleshooting to end

3. If any causes of the problem are identified, the firmware will ask you to confirm the application of the fix. We confirm and wait for the tool to solve the problem.
4. As a result, we get a report on the work done: green tick means that the cause of the error has been eliminated. It remains only to open the network panel and check if access points have appeared there.

   

   When the problem is fixed, a report will appear

5. If the tool does not find anything, move on to other solutions.

   

   The tool may not find any problems with the wireless adapter

We turn on Wi-Fi itself on the "laptop"

Make sure that the wireless connection is not disabled in the operating system settings:

1. If you are using Windows 10, click on the network icon at the bottom right with the right key - select open settings. Now in the second or first section on the left, click on the link "Network and Sharing Center".

   

2. In the case of the “seven”, you can start the center directly from context menu network icon.

   

   Go to the center through the context menu of the network icon on the "Taskbar"

3. You can also get to the center through the "Control Panel". We press on R and Windows - in the line "Open" we write control and press "Enter" on the "clave".

   

   Run the control command in the window

4. We search and open the link leading to the center.

   

   On the panel, launch the "Network and Sharing Center" block

5. Already in the very center, click on the second link on the right.

   

6. In a new window with connection tiles, we are looking for a wireless connection. If it is grey, then WiFi function now deactivated on the "computer".

   

   Find your wireless network in Network Connections

7. Right-click on the tile and select enable.

   

   Select "Enable" from the context menu

8. We are waiting for the activation to occur.

   

   Wait for network activation

9. The tiles should become brighter. Open the network panel and see if access points have appeared.

   

   The tile should turn blue to indicate it is active.

10. You can turn on "Wi-Fi" through a keyboard shortcut on the "laptop" (Fn and one of the function buttons F1 - F12 - it usually displays a tower with a signal). On Acer, for example, this is the F3 button.

    

    Find the Wi-Fi network icon on one of the function buttons

11. We press on Fn (to the left of the "Start") and on the function key - the "Wi-Fi" indicator on the laptop should light up, if any.

    

    Hold down Fn and one of the function keys

12. In the “top ten”, the activation of the option is as follows: we hold down Windows and A - in the menu on the right we look for the Wi-Fi tile. If it is a pale shade, click on it.

    

    In the notification area, find the tile with the wireless network

13. The tile will display the Enabled status.

    

    When you click on a tile, it will turn bright blue.

Remove virus on PC

You can find and remove viruses through the classic Windows Defender program, or using third-party antiviruses or portable scanners, for example, the same Dr. Web CureIt, AVZ and others. Choose an extended scan if possible, rather than a quick one.

Use a portable antivirus for scanning, such as Dr. Web CureIt

Reinstalling or updating the wireless adapter driver

To begin with, let's try to reinstall (remove and reinstall) through the "Windows" tool "Device Manager":

1. A quick method that can be applied with any version of Windows is to hold down R and Windows and drive in the value devmgmt.msc. If you don't want to write it yourself, just copy and paste.

   

   Run the command devmgmt.msc at the line

2. In version 10, an additional Start menu is available (called by right-clicking on the icon or by combining Windows and X) - in it we click on the dispatcher line.

   

   From the Start button menu, click on "Device Manager"

3. We open the block with network adapters - we are looking for a device with the phrase Wireless LAN (it can also be Wi-Fi).

   

   Find an item with Wireless or Wi-Fi in network adapters

4. We press the right button - we click first on the first item for the update. You will need internet to update - find a way to connect to another network, for example, create a hotspot on your phone if you have Mobile Internet, or visit a cafe with your laptop (most of these establishments have free Wi-Fi).

   

   Select the update function from the list

5. In a new window, follow the link to start an automatic search for an upgrade on the network.

   

   Click on "Search automatically for updates"

6. We are waiting for it to be completed.

   

   Wait for the driver search to finish

7. If the update wizard still does not find anything, click on "Close" and proceed to reinstall the driver.

   

   The system may display a message stating that the latest drivers are installed on the PC

8. In the context menu, select already delete - we confirm that we want to remove the device.

   

   Confirm device deletion

9. Now select the Desktop item at the top with the left key and in the Action menu, click on the item to update the configuration from the top - the device will appear in the list again. We reboot and check if any access points have appeared.

   

   Select configuration update from the Action menu

Download drivers from the official website of the manufacturer

You will need the exact model name of the "laptop" to search for "firewood". In our case, this is a model from Asus:

1. We go to the official Asus page with "laptops" - select our series.

   

   Select the desired laptop series

2. We are looking for and opening a section of the site with a specific current laptop model.

   

   Find your model and open the section with it

3. Go to the support block at the top right.

   

   Click on the "Support" section

4. We launch the first tab with drivers and utilities.

   

   Go to the "Drivers and Utilities" block

5. Choose your operating system.

   

   Select your OS from the list

6. Scroll down to Wireless. Click on "Download".

   

   Click on "Download" in the Wireless menu

7. Open the downloaded archive, run the installation file in it and put the "firewood" on the PC as regular program- follow the simple instructions of the installation wizard. We restart the PC and check if access points have appeared or not.

   

   In the downloaded archive, open the driver installer

Of course, site interfaces different manufacturers differ from each other, so if you do not have Asus, you will have to dig a little into the resource. Many sites already have a separate general section for drivers, in which you usually need to fill out a questionnaire to find the right software for a particular model.

Checking and "repairing" OS system files

It never hurts to check the system files for integrity - especially if it turned out that your "laptop" has viruses (they spoil them - the system starts to slow down as a whole). To check if the no networks error is due to corrupted files, follow the steps:

1. On the "Start" panel (if you have "seven"), open the menu with standard utilities - look for "Command Prompt", right-click on it and click on the option to launch the console with administrator rights.

   

   Run "Command Prompt" as Administrator

2. Another launch method is to open the Run window through Windows and R, write a simple cmd code and execute it through the hot combination Shift + Ctrl + Enter.

   

   Complete cmd command via Shift + Ctrl + "Enter"

3. We drive in the code sfc / scannow and for the subsequent execution we press on "Enter".

   

   Paste sfc /scannow and press Enter

4. We are waiting for the completion of the check - it can last about half an hour or more.

   

   Wait until the search and repair of "unhealthy" files is completed

5. When 100% appears, the fix will be completed, but if you see a message in the editor that not all files were cured, run the same check - just boot your laptop in safe mode first.

   

   Read the report on fixing corrupted files

Video: how to recover Windows system files

See if the WLAN autoconfiguration service is active

The WLAN Auto-Config service is responsible for connecting to Wi-Fi access points. You need to check its activity as follows:

1. Go to the "Control Panel" section called "System and Security". Click on the name "Administration".

   

   Go to the "Administration" section

2. In the list of system tools that opens, select "Services".

   

   Open the Services component

3. "Service Manager" can be activated in another way. To do this, type Win + R and enter in the displayed area: services.msс. Then apply the code - click on OK.

   

   Run the services.msс code in the "Open" line

4. Service Manager will open. In order to quickly find the WLAN AutoConfig Service item, sort all the services in alphabetical order by clicking on the name of the Name column.

   

   Order the list by the "Name" parameter

5. Find the name of the desired service. If the status “Working” is not set opposite its name, then in this case it is necessary to activate it. Double-click on her name with the left mouse button.

   

   If the "Status" line does not contain the word "Running", then the service is disabled

6. The service properties window opens. If the Startup Type field is set to Disabled, then click on it.

   

   Look at the "Startup Type" menu

7. A drop-down list will open, where you need to select "Automatically". Then click on "Apply" and OK.

   

   Select automatic startup type

8. After returning to the main interface of the "Service Manager", select the name "WLAN AutoConfig Service", and on the left side of the shell, click "Start".

   

9. The service will be activated.

   

   The selected service will be enabled immediately.

10. After that, the status “Working” will be displayed opposite its name and the problem with the lack of connections will be solved.

    

    The status should be set to "Running"

Video: How to solve the problem "No connections available"

If the laptop treacherously does not display only your "Wi-Fi"

If any access points appear on the panel, except for your home one, go to the settings of the network device.

Change the communication channel in the router settings

First of all put automatic detection communication channel. Consider the procedure for one of the TP-Link router models:

1. Paste one of the number combinations into your browser's address bar: 192.168.1.1, 192.168.0.1, 192.168.0.254.

   

   Enter or paste into the line the address to launch the personal account of the router

2. Write your username and security key to enter Personal Area router. Usually there is one word admin for two values, but if you have changed it before, enter the data you set. For some routers, other combinations may apply - they are indicated on the back of the device on the label.

   

   Enter the word admin in both fields

3. Go to the second section "Interface settings" and to the block for wireless networks.

   

   In "Interface Settings" open the third section for the wireless network

4. After the access point there will be a "Channel" item. Set the drop-down panel to "Auto".

   

   Put an automatic communication channel in the menu

5. Select the country if the wrong one was specified.

   

   Enter your country if necessary

6. Scroll down the page and click on the save button.

   

   Save all settings using the button below

7. We reboot the router and look at the result from the procedure.

We put a different access point name (SSID)

We go into the router's office and in the same "Wireless Network" tab we are looking for a section with WPS settings - in the field for SSID we write a new name for the access point. We also save the changes.

In the SSID field, write a new connection name

Reset network device settings to factory settings

You can return the previous settings that the router had after purchase through the cabinet interface. In some models TP-Link routers you need to go to the "Device operation" tab at the top and open the "System restart" block. Mark "Factory settings" and click on the start button.

Select restart with factory reset

In other router models, go to the Factory Defaults block and click on the Restore button.

Another TP-Link interface may have a Restore button

If you do not want to enter the office, find the Reset button on the back of the router - hold it down for a few seconds. When the indicators flash, you can release and configure the router again.

Press the Reset button on the back of the router

Usually, the setting is done automatically. As a last resort, you can use the quick setup feature.

Launch the quick router setup wizard

Video: how to reset the router to factory settings

If your laptop does not catch any network in principle, run diagnostics through the built-in Windows tool; check if “Wi-Fi” is enabled on the device and the service for WLAN auto-configuration; remove viruses and restore system files in " command line". Reinstalling the wireless drivers will also help. If only your point is missing from the list, the problem lies in the router - change the communication channel, the name of the access point, or reset all settings to the initial ones using the Reset button.

We will explain why the laptop does not see Wi-Fi and how to solve the problem we will explain in the article, since no one is immune from malfunctions of the wireless Internet connection. The WiFi connection may not be functional for a number of reasons. And it is not necessary that these reasons will be somehow connected with each other.

Content:

You can easily check why the laptop does not see the Wi-Fi network. To do this, we first check the access point or router, as well as the laptop itself for performance. It is important to know which device is causing the problem.

Let's start with the router. Enough common cause malfunction becomes a banal "freeze" of the equipment. The first sign of this is an atypical indication, that is, the LEDs on the router are blinking in an unusual mode. To correct the situation, restart the device or unplug it, wait a couple of minutes, and then turn it on again. If it's a minor internal glitch, restarting solves the problem. The laptop, in turn, will quickly pick up the signal.

Voltage fluctuations can cause parameter reset. The router stops signaling. In some cases, the Internet connection is also lost. If this happens, then the settings must be re-entered using the device web interface. Input addresses: 192.168.1.1 or 192.168.0.1. The choice will depend on the model of the router. You can access the interface from any browser. If after that the connection worked, then everything is in order with the device.

Useful advice: The reason for the incapacity of the router is often the involuntary reset of the router to initial settings. To set up the configuration again, it is better to use the services of specialists from the provider company.

If each of the ways to check the router did not work, you need to check why the laptop does not see Wi-Fi. First of all, we check the activity of the network equipment. On the case of most models of modern laptops there are LEDs. We will be interested in the one that is marked with an antenna icon or directly with the inscription "Wi-Fi". If the diode is lit, then the built-in adapter is functioning. Otherwise, the adapter must be started. We hold down the "Fn" key and another one, where there is an antenna icon.

The cause of temporary inoperability may be a malfunction of the software tools operating system. Connection activity will be checked through the Windows Control Panel. If it does not work, then the launch is carried out using the context menu.

The NE may not be listed at all in the list of available connections. We check the section "Network adapters", and more specifically - wireless devices"Wireless". Enable the adapter using the context menu. Then we restart the computer.

Why does the laptop not see wifi? Typical Causes

There are several simple reasons why the laptop does not see Wi-Fi. For example:

1. The router is not turned on - turn on the router;
2. No Wi-Fi coverage – get closer to the source;
3. Your router is "buggy" - reboot it;
4. W-Fi receiver is not turned on - turn it on.

However, there are more serious violations of the connection. These include:

Wi-Fi is slow, why?

In addition to the fact that the computer does not see "wi-fi", the problem is also relevant slow connection. There are several reasons:

This article will discuss what to do if Window 7 does not connect to a WiFi network and. The fact is that although this operating system is more stable than its predecessors, there may still be various errors that need to be corrected manually.

Before moving on to connection problems and their solution, you need to understand what WiFi is and how the technology works. This will allow you to quickly fix some problems.

The fact is that to connect to such a network, you need an access point. Its functions are usually performed by a wireless router. And therefore, first of all, if there are no available connections to the WiFi network in Windows 7, you should pay attention to the router.

As a rule, the reason is precisely in it. But of course, there are other problems as well. So, let's go in order.

Checking the Router

Everything is very simple here. If the laptop does not see available connections, then go to the menu WiFi settings router and check if the wireless network is turned on. To do this, you need to connect to the router using a regular Internet cable. After that, open a browser (any) and write 192.168.0.1 in the address bar. Press "Enter". Next, a window will appear in which you will be prompted to enter a password and login. As a rule, the default key and login are admin, admin, respectively.

How to easily find out the IP address of a WiFi router: Video

If you have changed these data, then enter your values. Next, we get to the settings menu. We are interested in Network SettingsWireless Network (NetworkWireless). In the wireless network settings, you need to check the box next to the item “Enable wireless network” (Enable Wireless Router Radio). Everything, this completes the router setup. And if Windows 7 problems with WiFi still remain in the laptop, then you should proceed to setting up the operating system.

Why does the computer not see available wireless networks

There are many reasons for this, as well as solutions. Fortunately, Windows 7 is easy to use and has many options for diagnosing and fixing various problems. But we will consider only the most common ones.

The first step is to check the status of the wireless WiFi connections. To do this, you need to open the Network Sharing Center. To do this, click on the network icon in the tray and select "Network and Sharing Center" in the window that appears.

A menu will open in which all settings related to the network are made. Here we are interested in the item "Change adapter settings". In the window that opens, you need to find a shortcut that has the name "Wireless network connection". If this connection is greyed out, it means that it is disabled. To enable it, right-click on it and select "Enable".

Windows 7 won't connect to Wi-Fi: Video

Wireless network icon not showing in tray

Often users ask the question, what to do if the WiFi icon is not displayed in the tray in Windows 7? This can only mean one thing - the wireless module is turned off or not working. Wi-Fi activation occurs, as a rule, using the Fn key combination + adapter power button. On different laptops, this button may be located in different places.

For example, on Asus laptops- this is a combination of Fn + F2, on Lenovo - Fn + F5. The key itself turn on WiFi marked with the corresponding image. In addition, on some models, a separate key is provided to activate the wireless connection module. In that case, just click it.

So, after turning on the wireless adapter, Windows 7 should automatically start searching for available networks. If this did not happen, and the tray icon did not appear, then you should check the correct operation of the drivers.

What to do if a laptop with Windows 7 does not see Wi-Fi: Video

Checking Drivers

You can check the software in Windows 7 in the task manager.

You can launch it by clicking on the "My Computer" shortcut, which can be found on the desktop, in the start menu or in Windows Explorer, with the right mouse button. In the window that appears, click "Properties". Next, a menu will open in which you need to open the "Device Manager".

In the window that appears, we are interested in network adapters. If you did not find this, then there are no drivers for the device and you need to install a driver for this module. If, however, such an item exists, then open it. Typically, a wireless adapter is called a Wireless Network Adapter. The device may also be referred to as exclamation mark. This indicates that the driver is not working properly and needs to be updated or reinstalled.

It is very easy to do this. As a rule, a laptop comes with a special disk that contains all necessary programs and drivers. If there is no such disk, do not rush to get upset. The necessary software can always be downloaded from the Internet, as manufacturers have taken care of supporting their customers.

To do this, find the official website of the manufacturer of your laptop and write the exact name of the laptop (exact model) in the search. Next, you can download drivers for Wi-Fi and install them. It is worth noting that it is not recommended to install software downloaded from third-party sources, as such drivers can be unstable, and sometimes even pose a threat to the integrity of the system.

How to reinstall WiFi driver: Video

It is also important to know that sometimes, even when installed driver, the adapter cannot be enabled because it uses additional functions keyboards. This means that along with software for the network adapter, you should also download the driver for the keyboard, as well as the recommended utility for managing the wireless module.