The laptop stopped seeing the wifi router what to do. Why the computer, laptop does not see the TP-Link router: what to do? Problems with wireless networks

Often there are questions that after connecting the router to the computer via a network cable, nothing happens. The computer does not react at all to the connection, and does not see the router. There really is such a problem, and I want to tell you about possible causes and solutions.

As a rule, connecting a computer to a router via a network cable is as easy as shelling pears. I have, according to which you will definitely do everything right. Usually, there are a lot more problems about connecting via a wireless network. But, today we will talk specifically about problems with connecting via a network cable.

So, if you connect a network cable to a router and a computer, and the computer refuses to somehow respond to this connection, then first we need to find the reason. By the way, the Wi-Fi network from this router can work well and distribute the Internet. In our case, it's not the table that matters. Although, if the wireless network is not working, and the indicators on the router do not light up as usual (especially if only the power indicator is on), then most likely your router just broke. If it works as usual, then the reason must be sought elsewhere.

Why is there no connection between the computer and the router via LAN?

First of all, I advise you to check if you have connected your computer to the router correctly. When connecting a network cable to a computer (or laptop), it is hardly possible to make a mistake, but when connected to a router, it is possible (although difficult). On the router, the network cable from the computer must be connected into the yellow LAN connector. And only in him. There are usually 4 of them.

With this, I think there should be no problems.

Very often, in this situation, it is the computer or laptop that is to blame. And not a router, as for some reason everyone immediately thinks. The fact is that network cards on computers can fail very simply and incomprehensibly. They burn very well. To check this, simply connect a network cable to the computer from another router, modem, or directly from the provider. If, for example, when you connect the Internet directly to the computer, everything works, then the reason must be sought in the cable, or most likely in the router.

Also, I advise you to go to the device manager and see how the network card works. Perhaps there are errors in her work. In this case, update the driver. Also, check if the network connection is enabled.

A router (router) is a kind of network "computer" designed to transfer data between devices that have different interfaces and protocols.

If the PC is unable to access the Internet or access the router settings page, a number of operations must be performed with the router and PC.

Most often, a communication problem with the router is identified by the messages "Network cable not connected" or "No Internet access" in the form of a crossed-out image or an exclamation mark in the notification area on the taskbar.

Step 1. The first thing to do in this case is to check whether the network (LAN, Ethernet) cable connectors are correctly connected to the ports (connectors) of the router.

The router port labeled "INTERNET" or "WAN" is used to connect the cable coming from the ISP. This port is usually marked with a different color on the router and is sometimes located at some distance from other ports.

The PC and the router, in turn, are connected by an Ethernet cable, one end of which is connected to the RJ-45 connector on the PC, and the other end to one of the LAN ports of the router.

Step 2 Reboot the router, because. he is characterized by "". To do this, press the "On / Off" or "Power" button on the device. The router's LEDs should turn off. After 15 seconds, press the power button on the router to turn it on.

Reference! If there is no power button on the router, turn it off for a short time from the 220V network and turn it on again after 30 seconds.

Step 3 Test Internet access. If the connection with the router does not appear, this may be due to a network settings failure. To fix them, you need to run diagnostics of the connection.

  1. Press the combination "Win + R" on the keyboard ("Win" is to the left of "Alt").

  2. In the window that opens, type "control" and click "OK".

  3. The "Control Panel" will launch. If sorted, click on "View network status ...". If icons are displayed, select "Network Sharing Center ...".

  4. Click "Change adapter settings" on the left.

  5. Right-click on the network icon, and left-click "Diagnostics" ("Fix").

Windows will analyze the status of the network and identify problems by reporting troubleshooting or problems found.

Step 4 Retry network connection. If the result is negative, replace, if damaged, the LAN cables connecting the PC and the router. Cables can be damaged by being kinked or clipped by furniture.

Step 5 Retry connection. If there is no connection, there is probably a problem with the PC network board. It is recommended to reinstall its driver or replace it in case of failure. This is especially true if the Wi-Fi connection works.


Windows will find and update the board driver.

Step 6 If there is no connection, connect the provider's cable directly to the PC connector and configure the Internet according to the recommendations specified in the contract with the provider. This will verify that the Ethernet port on the PC is working.

Note! It is also possible that the access problem is coming from the provider side.

If the Internet appears, then the malfunction is localized in the router and it needs to be reset to the default settings.

Resetting the router to factory settings

Consider such a reset using the Linksys WRT160NL router as an example. Please note that the name, password and IP address of the router are unique for this device.

Reference! To find out the name, password and IP address of the router, you need to refer to its documentation (including its label) or find out this data via the Internet.

Step 1. Disconnect the computer and router from the 220V network.

Step 2 Disconnect all wires from the router.

Step 3 Turn it on and wait 1-2 minutes until it is fully loaded.

Step 4 Press a thin object (e.g. an open paper clip) and hold down the reset button for about 5 seconds. The router reset button is located on the bottom right of the product label (marked in red). Release the button and wait for the router to restart and start up for 2-3 minutes.

Step 5 Turn off the router.

Step 6 Connect one PC to the router. To do this, insert one end of the LAN cable into the connector on the PC, and the other into port 1 of the router. Turn on the router and wait until it boots up for 1-2 minutes.

Step 7 Turn on PC. Disable WI-Fi if it is enabled on your computer. Usually, to turn Wi-Fi on or off, you need to press one of the F1 - F12 buttons, which has the "antenna" icon, sometimes in conjunction with the "Fn" button, or move a special switch.

After resetting the router to factory settings, to check its connection with the PC, you must execute the “ping” command.

Step 8 Press "Win + R" on the keyboard and type "cmd" in the menu that opens, clicking "OK".

Step 9 Enter in the window that opens "ping 192.168.1.1" and press the "Enter" key. 3 or 4 lines will appear, starting with either "Reply from" or "Request timed out". If the line says "Response from", then the computer sees the router.

Reference! If you receive the message "Query timed out" and the network card and the LAN cable connecting the PC to the router are OK, this means that the router is faulty and needs to be repaired.

Step 10 Open a browser and type the router's IP 192.168.1.1, press the "Enter" button.

Step 11 In the login menu, leave "Username" blank, and in the "Password" field, enter admin. Press "Login".

The settings interface will open.

Step 12 Try to set up the router using the installation CD or manually according to the instructions of the provider and see if it can work properly.


Step 13 During normal operation of the router, exit the browser. The router is correct.

Reference! If a "Response From" is received but the login menu and the router's configuration page do not open, either the router is faulty or the firmware is faulty.

In this case, you need to use the Linksys tftp.exe program to start the router by updating it to the latest firmware.

Important! After updating the firmware, repeat the steps above, starting with " Step 1".

Video - What to do if the laptop does not see the Wi-Fi network

Updating the firmware of the router

Step 2 Click on the found equipment on the left.

Step 3 Click "Downloads\Firmware" ("Downloads").

Step 5 Click "Agree". The download of the firmware file will begin.

Step 7 After loading the page, click on the word with the download link “here” (“here”) in the line “i. TFTP Utility - To download the TFTP utility, click here.

Note! The downloaded file can be opened in the "Settings" - "Downloads" options.

Step 8 Run the installation file Tftp.exe by left-clicking on the "Open" option.

Step 9 Enter in the line "Server" ("Server") - 192.168.1.1, in the "Password" - admin.

Step 10 Press the selection button (with three dots) in the "File" line, click on the downloaded firmware file in the menu, then "Open" ("Open").

Step 11 Click "Update" ("Update").

A firmware update indicator will appear and, when it is completed, a message indicating that the firmware has been successfully completed.

Step 12 Enter 192.168.1.1 in the browser search, click "Enter". The login menu will appear. Leave "Username" blank, and enter admin in the "Password" field. Press "Login".

The router settings page should open and access should be restored.

Wired Router Setup Process

ISPs use several protocols for user connection:

  • (issued) IP address (DHCP);
  • fixed user IP;
  • PPTP (point-to-point connection);
  • L2TP (layer 2 tunnel);
  • PPPoE (link layer).

Before connecting, you need to find out which protocol the provider uses, as well as (if available) the username and password. Usually this information is given in the contract concluded with the provider.

If DHCP is used, which happens in most cases, then the Internet should work immediately after connecting the router to the cable from the provider, because. Routers are set to DHCP by default. If another protocol is used, it is necessary to register it in the router.

Consider the use of the PPPoE protocol on the example of a TP-LINK router.

Step 1. Connect the router to the PC and the provider's cable. Turn on both devices.

Step 2 Right-click on the connection icon, selecting "Network and Sharing Center...".

Step 3 Click on the "Ethernet" option.

Step 4 Right-click on the "Connection ..." label, left-click on the "Properties" line.

Right-click on the icon "Connection ...", left-click on the line "Properties"

Step 5 Left-click on the line "TCP / IPv4" (in Win XP - "TCP / IP"). Click "Properties".

Step 6 Left-click on the lines "Obtain an IP address automatically", "Obtain DNS server address automatically". Click OK.

Step 7 Launch the browser, enter 192.168.0.1, press "Enter". In "Name ..." and "Password" type admin. Click Login.

We enter 192.168.0.1 in the browser search field, press "Enter", in the login window we type admin in both lines, press "Login"

Step 8 Select "Network" - "WAN" on the left.

Step 9 On the right, in the drop-down list, select the type "PPPoE / Russia PPPoE" in the "WAN Connection Type" line. Enter (check) the rest of the data indicated in the photo below. Click Save.

Step 10 Click on the “Status” section on the left and write down the Mac address of the router, which, if necessary, you need to provide to the provider.

Wi-Fi setup process

Step 1. Click on the left on the section "Wireless" - "Wireless Settings".

Step 2 In the "Wireless Name" line, set the name of the network that the router will display for connecting to Wi-Fi. Enter (mark) the rest of the data indicated in the photo below. Click "Save".

Step 3 Click on the subsection "Wireless Security" on the left.

Step 4 Scroll down the page and enter (mark) the data indicated in the photo. In the line "PSK Password" enter the password for connecting to Wi-Fi. Click "Save".

The connection of the router to the Internet is completed.

Is your computer terribly slow?

Many people are familiar with the annoying situation when the operating system slows down and slows down, sometimes so much that it loses important data due to the inability to save them. There are ways to get rid of these problems, but it's best not to fall into them.

Useful steps in this case:

  1. Scan your computer for viruses. If your PC is constantly slowing down, it most likely contains malware, adware, or a virus. A scan will identify the problem and usually fix it.

  2. Get rid of unused programs. It is better to remove unnecessary software along with entries that can slow down your computer.

  3. Clear registry. This can have a big effect, and it's best to do the cleaning with specialized software, because. manual cleaning requires special knowledge.

  4. Defragment the hard drive. This will allow you to collect together files "scattered" on the disk, which will speed up the OS access to them.

  5. Don't multitask too much. The user can be productive with only a few programs, and the chance of the PC slowing down is greatly reduced.

  6. Update hardware. Computers are on average designed to last up to 5 years as technology advances very quickly.

  7. Reinstall operating system. This is an extreme measure, but sometimes the only one that brings back the "old fast" PC.

As you can see, all that usually needs to be done if the computer "slows down and freezes" is to give it a little attention from time to time, which takes only a few minutes.

Video - Why the Internet does not work on a computer

The most common laptop problems are setting up and connecting to Wi-Fi networks. Therefore, before proceeding with possible solutions to this particular problem, you first need to check whether the connection itself is configured properly or not.

What is the reason?

The fault may lie, for example, in the router used by the user, or in the operating system itself. The most common reasons why Wi-Fi is not displayed or not seen by a laptop may be due to the fact that: the Wi-Fi router is frozen or not configured, there may be various problems with the device that connects to Wi-Fi , Internet access is blocked by a firewall or antivirus, and DHCP does not issue an IP address.

Troubleshooting

To find out the cause and then fix the problem, you need to check the router. To do this, restart the router and see if the network is displayed in the list. If this has not happened yet, then you need to disconnect the network cable from the router and rearrange it into the appropriate connector.

This will check whether the Internet comes from the provider at all or not. If the Internet does not arrive, then the matter is directly with the service provider, otherwise, it will be required. To configure it, you need to go to the address 192.168.1.1, or 192.168.0.1, depending on the router model.

If everything is in order in the settings, then you need to update or install drivers for the network adapter. They can be easily found on the Internet, but for this you need to know the model. To do this, open the "Control Panel" and select "Device Manager" in the menu. In the list you need to find the item "Network adapters". A list of all network devices running on the computer will be listed here, and in order to find Wi-Fi, you should select the item where the phrase "Wireless device ..." is present. After finding and installing all drivers, Wi-Fi networks should be displayed.

In the event that none of these methods helped to fix the pressing problem, then most likely the problem lies directly with the device itself, which is trying to find and connect to the wireless network. To check this, you can buy an inexpensive USB-adapter for Wi-Fi or take one from a friend and install

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 notification “No connections available” appears on the network panel, and a red cross appears on the network icon next to the date in the lower right corner.

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);
  • the wireless adapter drivers 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 install the latest version (it is advisable to download the latest version from the official website of the laptop);
  • 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 a quick setup option, so it will be easy to carry 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: a green checkmark 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 options. 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 launch the center directly from the context menu of the 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 gray, then the Wi-Fi function is 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 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 we select the Desktop item at the top with the left key and in the Action menu at the top we click on the item to update the configuration - the device will again appear in the list. 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. We open the downloaded archive, run the installation file in it and install the "firewood" on the PC as a 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, the interfaces of sites from 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.

    Execute 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.

    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, set the automatic detection of the 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 login and security key to enter the router's personal account. 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.

    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 of TP-Link routers, you need to go to the "Device Operation" tab at the top and open the "System Reboot" 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 the "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.