A router is a complex network device, with its own processor, RAM, firmware (more expensive models even with the operating system). It's essentially a small computer, and it tends to break down from time to time. Let's look at the most common reasons why the router does not work, and possible ways troubleshooting.

Reason one

The first reason is fatal, that is, the router simply burned out. It’s easy to identify - on any device there is LED indicators. If they don't light up, it's bad. To be sure, you can try connecting another, known-to-be-good power supply; if that doesn’t help, either service center for repair (if there is a valid warranty), or in the trash.

There are many reasons why routers burn out - high humidity, overheating, power surges due to thunderstorms (although in the latter case, power supplies are more likely to burn out).

Thunderstorm is the enemy of electronics

Attention! In most cases, the warranty card indicates that failure of electrical equipment due to a thunderstorm is not an insured event!

To increase the service life of the product, you need to be careful, do not install the router in poorly ventilated corners, wipe off dust and try not to spill tea on it.

Reason two

But there are situations when the router works, but not properly. For example - local network works great, but no internet connection.

So, why doesn't the router distribute the Internet? If everything was working the day before, then the first thing you need to do is call the provider’s support service - preventive maintenance is possible.

There is also a possibility that the payment is overdue.

If there are no problems on the part of the provider, go to the router settings and look for a menu item that contains the word “WAN”. For example:

Setting up a WAN port using the example of a TP-Link router

U different manufacturers The menu will be slightly different, but the basics are the same for all - you need to make sure the connection type (WAN Connection Type), username and password are correct.

The second situation, when there is no access to the Internet, is incorrect setting Wi-Fi (of course, this means a wireless local network). To be sure, pay attention to the indicator LEDs on the front panel of the router. For example, the D-Link dir-300 router.

Front panel of the D-Link router

As you can see, the Earth-shaped indicator is lit green, this means the router has access to the Internet. Therefore, problems with Wi-Fi.

Simpler reasons

Reason three

First, look again at the indicators on the front panel. The Wi-Fi activity icon is lit. To find the cause of the problem, go back to the router settings and see why the wifi router is not working. As a rule, this is a menu item containing the word “Wi-Fi”. For example, on a D-Link router:

Example Wi-Fi settings D-Link router

In this menu item, you need to double-check all settings items.

It often helps to change the “auto” value in the “channel” line to some number (using an experimental method), since there may be interference from a neighboring router that has selected the same channel.

If after all this there is still no access to the Internet for the local network, then the firewall is probably configured incorrectly.

Reason four

A firewall (another name is a firewall) serves as a wall between local computer network and the outside world.

Firewall logo

At correct setting it stops attempts of unauthorized entry into the local network from the outside, thereby preventing malicious actions. But you can also configure the firewall to completely cut off any data flow.

To make sure that the firewall is configured correctly, go to the router settings menu again. Let's look at the example of a D-Link router - go to the “Firewall” menu.

D-Link router firewall

In the “IP filters” submenu, the field should only be filled in deliberately, since these network addresses will be blocked. If such an action is not required, the fields must be clean.

Port Forwarding

Port forwarding

This router feature also blocks access to some Internet resources that use non-standard ports. For example - online games, torrents, and much more. In this submenu, you need to configure the router so that it blocks these messages and specifically sends them to a specific computer on the local network.

Click the “Add” button.

Let's look at the example of the DC++ file exchange program (popularly called a hub). This is what the hub settings will look like.

DC++ program window

In accordance with the program settings, we also configure the router:

Template – leave the value “Custom” (selectively);

Name – come up with a name for the rule. For example – DC++;

Interface – WAN (incoming wired traffic);

Protocol – TCP/UDP. You can indicate only one of them if you are completely sure that the choice is correct;

Four ports (external start/end and internal start/end) – we register the ports specified in the hub settings;

Internal IP – enter the IP address of the network computer on which the DC++ program is installed.

Click the “Change” button – access to this resource will open.

Reason five

And finally, common reason lack of Internet access - failure of neighboring equipment. For example, in a certain segment of the local network, a d link des 1005a router is used, which connects several computers into a subnet. If it breaks down, the entire subnet ceases to exist, although the main router, which plays the role of a gateway, is in working order.

A little video on how to disassemble and repair the router if necessary:

Wi-Fi technology is very widely used in life modern man, because it allows you to easily and quickly solve problems with connecting to the Internet without using conventional wires. This is especially true when using laptops, with which you can access the Internet at any time. convenient location thanks to the built-in Wi-Fi adapter.

That is why the situation when Wi-Fi does not work on a laptop leads to significant inconvenience and even some problems. There are many reasons why Wi-Fi may not work on a laptop computer. It is simply unrealistic to solve the most serious of them on your own without the help of specialists, but there are quite a lot of them that can be eliminated on your own. Let's look at them.

Is the problem with your laptop or router?

A fairly common problem is that the laptop has stopped connecting to WiFi networks, the problem is not with the laptop itself, but with the settings of the router, which distributes the network. Thus, the laptop can be configured correctly, but Wi-Fi still does not turn on precisely because it has nothing to connect to.

To rule out the possibility that the problem is related to this, you should try to connect to the network from any other device that is equipped with a Wi-Fi adapter - from another laptop, smartphone, tablet, etc.

If Wi-Fi does not work from another gadget, then the problem lies in the Wi-Fi router distributing the Internet. If the connection is successful, the problem is in the laptop and before solving it, you first need to determine why Wi-Fi stopped working.

Hardware enable adapter

Based on such diagnostics, it is possible to accurately determine that this problem arose precisely because of the laptop. When Wi-Fi does not work on it, you can try using several methods.

The first one is to check if the wireless adapter on your laptop is enabled. Almost everything modern models They have light indicators for the operation of the WiFi module and there are special key combinations to enable it in hardware.

Typically, a lit indicator indicates that the module is turned on. If the indicator does not light up at all or lights up in red, then Wi-Fi is not working precisely because of the adapter wireless network. It must be turned on.

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

To enable the module of such a network, press the key combination Fn and one of the system keys F1-F12. The specific combination depends on the laptop manufacturer. Usually, the corresponding antenna icon is located on the desired key. If it is not there, then to turn on Wi-Fi you should try pressing standard for specific model combination:
Fn+F3 for Acer;
Fn+F2 for Asus, Dell or Gigabyte;
Fn+F5 on Fujitsu devices;
Fn+F12 on HP laptops.

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

Software enablement

When Wi-Fi stops working and turning it on in hardware does not give positive results, you also need to turn it on in software, which is done directly from the operating system the laptop is running.

To programmatically enable WiFi that has stopped working on Windows 7, 8 or 10, you need to perform the following sequence of actions:

1. On the notification panel, which is located near the clock, select the network connection status icon;

2. From the list that opens, select “Network and Sharing Center” or “Network Settings” depending on the version of the operating system;

3. The next step is “Changing adapter parameters.”

Among the list of all existing connections, you need to pay attention to the color of the “Wireless Network Connection” icon. If your WiFi does not work and the wireless adapter is disabled, the connection icon will not be highlighted. In this case, right-click on its icon and select “Enable” from the context menu that opens. The color of the connection icon should change.

In this case, the wireless network adapter turns on, all you have to do is find the one you need in the list of available wireless networks and connect to it.

If, after such actions, Wi-Fi, which has stopped working, continues to be inactive, you need to move on to the next method of solving the problem.

Driver installation and update

Quite often, the wireless Wi-Fi connection does not turn on due to the lack of a driver or when it is very outdated. To determine whether the driver is installed, you need to select “Properties” from the context menu of the “My Computer” icon, which is located on the desktop or in the “Start” menu. Next, in the window that opens, select the “Device Manager” command from the menu on the left.

In the new window that opens with a list of connected devices, you need to find the name of the laptop’s wireless network adapter. Usually its name is “Wireless Network Adapter” or “Wireless Network Adapter”, along with which the device manufacturer should be indicated: Realtek, Atheros, Qualcomm or something else.

Having found the desired item and right-clicking on it, select “Properties” from the context menu. In the window that opens, there should be an item “Device is working normally.” But even if there is a mark indicating the normal operation of the device, this is far from a guarantee that the correct driver version is installed and Wi-Fi is turned on correctly. To check it, in the window with the properties of the wireless device, go to the “Driver” tab and pay attention to the items “Date of development” and “Vendor”.

If the supplier is Microsoft or the program development date is several years behind the current one, go to the official website of the laptop manufacturer and download the latest official version of the driver.

The same should be done if there is no wireless adapter among the list of installed devices.

If in the list of devices the module wireless communication is present, but marked with a yellow exclamation mark, this means that the device is disabled, as a result of which the network stopped working. In this case, opening the device properties window, you need to click the “Engage” button.

Another reason why Wi-Fi stopped working on a laptop may be that the energy-saving mode is enabled, which prevents the wireless connection from working. To disable it, you need to do the following:
1. Open Control Panel;
2. Select the “Power Options” icon;

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

External obstacles to the signal

It's also worth noting that a broken wireless network can also be the result of more than just laptop problems. The wireless signal is affected by some external factors that may weaken it. Ceilings, walls, floors and similar obstacles significantly degrade the signal quality of the access point and laptop.

As is known, the signal quality is personal computer is displayed in the form of several marks - the more there are, the higher the quality of the signal. If the wireless connection level is displayed as 1 or 2 marks, then you don’t have to try to use WiFi - in this case it will not work normally.

In this case, you need to move the router closer to your workplace, move workplace closer to the Wi-Fi router or buy a new, more powerful router.

Other causes of Wi-Fi problems

The causes of problems with the functioning of the wireless network adapter described above are the most common and you can fix them on your own.

It is worth noting that all of these are software solutions to the problem, which can be solved by installing, reinstalling or updating the device driver, as well as performing some operations with the OS.

But often the problem with the operation of the wireless connection module lies in hardware errors. What are these errors? These are problems that are directly related to the board itself, most often due to its physical damage.

To fix such problems, you will need to disassemble the laptop. It is worth noting that such actions can only be performed if you have certain skills in this area. If such skills are missing, it is better to entrust the work to professionals.

One of the most common physical damages is an unconnected antenna wire to the proximity module. This problem occurs with laptops that have been repaired or if their owner independently cleaned the cooling system from dust. In such cases, the antenna is sometimes simply forgotten, as a result of which the adapter will not be able to establish a connection even near the signal source. To fix this problem, you just need to connect to Wi-Fi module his antenna.

Sometimes the reason that Wi-Fi stops working is the usual overheating of the network card. Most often this is the result of the laptop being placed on one or another soft surface. The thing is that at the bottom of the device there are holes through which cold air enters, cooling all the computer boards. By blocking these holes, the system will overheat, which can lead to failure of certain components.

Another common cause of device overheating is dust, which can prevent cold air from entering the cooling system.

That is why, in order to avoid such problems, it is recommended to clean the laptop from dust at least once every year: in this case, it will be possible to avoid repairing the laptop as a result of overheating of its components.

In the most extreme cases, the wireless adapter may even burn out. In this case, only replacing it with a new one will help. You can determine this problem using the device manager, in which the module will simply no longer be displayed. When you try to install a driver for a wireless network, a message appears stating that the corresponding device is not installed on the system.

If all else fails

If none of the tips above helped, you can use a simple, but often effective solution: restart both your computer and your wireless router. Please note that after a reboot, the router turns on for up to 5-10 minutes before it starts distributing the network. Be patient. Also, despite the opinion of many skeptics, sometimes the problem diagnostic function found in the Windows operating system helps solve problems with a wireless network.

Thus, most of the existing solutions to problems related to the fact that Wi-Fi has stopped working on a laptop have been listed above. Almost all such methods and recommendations can be used by anyone who is faced with a similar problem, since this does not require any special skills.
If nothing helps, and the wireless network does not start working, there is only one option left - go for help to a quality service center, where they can solve any problems with the laptop.

If the article did not help solve your problem and Wi-Fi still does not work, write in the comments, I will try to help.

We have prepared detailed instructions for those users whose Wi-Fi does not work on their router. We will also look at questions such as why the Internet does not work through the router, and what to do if the router does not work. Below is a list of solutions to the most common problems with your home router.

Make sure Wi-Fi is turned on

If you are using a laptop, make sure Wi-Fi is turned on. Most laptops have a function key to turn Wi-Fi on/off on the computer. For example, on Asus laptop this is the F2 key.

Make sure your wireless connection is turned on

If you have turned on Wi-Fi on your computer, but the Internet is still not working, then you should check your wireless connection. To do this, click “Start” and start typing the following text “View network connections” on your keyboard. Next you will see the corresponding section, go to it.

The Network Connections window will display the wireless connection on your laptop. Right-click on the wireless connection and select Enable. If you see "Disable", then the network connection is already enabled.

Make sure the SSID and security key are correct

If your computer or laptop shows multiple available wireless networks, make sure you are connecting to the correct SSID (the name of your router) and that you have entered correct key security (password). If you connect to your neighbor's router and enter the wrong security key, of course the internet won't work.

Make sure the Internet is working

If you connect to the correct router, but Wi-Fi still does not work, make sure that the Internet is working at all. It is possible that the problem is not with your computer, but that the Internet simply does not work.

Try connecting to the router through another device, such as a smartphone, tablet, or laptop. If Wi-Fi works on another device, then it is safe to assume that the problem is with the computer.

Reboot your router

If the router does not work and does not provide Wi-Fi, the first thing you should do is reboot it. Quite often, popular routers experience errors that prevent one or more devices from connecting to the network.

You need to disconnect the power from your router and wait for 10-15 seconds and then connect the power again. Wait a few minutes for the router to connect to the Internet again, then check the Wi-Fi on your device. If the problem is still present, try restarting your computer.

Disable firewalls

If you have multiple firewalls installed on your computer, this may be the reason why the Internet does not work through the router.

To make sure that the firewall is not causing problems with your Wi-Fi connection, we suggest that you temporarily disable the firewall. If Wi-Fi works, then you should permanently disable the firewall or even remove it.

Restore Windows to an earlier copy

If at one point your Wi-Fi on your router stops working, try restoring Windows to an earlier copy. In some cases bad software or incorrect settings may cause problems with the Wi-Fi adapter or problems accessing the Internet.

Reinstall your wireless device and drivers

Damaged drivers or other problems with the wireless device may be the reason why the Wi-Fi router does not work. Make sure you don't have driver issues by following these steps.

1. Open Windows Device Manager (right-click Start and select Device Manager).
2. In Device Manager, expand the Network Adapters section to view all network devices.
3. Highlight the Wi-Fi or wireless network adapter and press the Delete key on your keyboard to remove the device.
4. Once the device is removed, close all windows and restart your computer.

After the computer is booted, the operating system Windows system will automatically install the necessary drivers on the network card.

Move the router to another location

It is possible that your Internet does not work through your router because the computer does not receive sufficient signal strength. Make sure the router is located close to the computer and its antennas are pointed towards your device.

If the router's location is an issue, then you might want to consider purchasing a Wi-Fi extender (also called an extender or repeater). Install it between the router and the problem area to increase Wi-Fi coverage and eliminate interference.

Update your router firmware

If you have tried all the methods above and nothing helps, then you can try updating your router firmware to fix the problem. Search the Internet for instructions on how to reflash your particular router model.

Operating system malfunction

Wi-Fi still not working on your router? Another reason may be damaged files in the operating system. We suggest a complete reinstallation operating system Windows.

Faulty equipment

If you have tried all of the above suggestions and Wi-Fi on your router still does not work, it is likely that the router itself is broken, or the Wi-Fi adapter on your computer is broken. In any case, you should check the wireless connection on your computer with another router, or connect your smartphone or tablet to your router, to be sure what the problem is.

If the problem is in the computer (laptop), then you need to take it to a service center for replacement motherboard or network card.

If the router is faulty, you'll probably have to buy a new one because routers are virtually impossible to repair.

That's it! We looked at the most common reasons why the router does not work, as well as what to do to get Wi-Fi and wireless Internet.

Let's look at a problematic situation when the phone connects to Wi-Fi, but there is no Internet. It looks like this: next to the name of the wireless network it says “Connected”, but when you try to open any site in the browser an error is displayed Web page unavailable or 404 Not found. Chrome still writes in such cases. The same applies to other software - all kinds of programs that use the Internet connection for their work or at least check for updates when starting will also display an error connecting to their web server.

In this article, we will talk in detail about how to solve the Internet problem on your computer, phone or tablet. Read carefully, follow all the steps and you will definitely find the reason why you do not have an Internet connection when your Wi-Fi connection is working.

Collecting information about the problem

Before making any changes to the settings Wi-Fi router, computer or phone, find out following points. This may make it easier to find the reason for the lack of Internet or narrow down your search:

• Is the Internet paid for and are the funds in the account running out?
• Is there access to the Internet via wire from a desktop computer?
• Is it possible to access the Internet via Wi-Fi from other devices that use the same Wi-Fi router?
• does the Internet connection problem persist when connected to another Wi-Fi networks?

Depending on the answers to these questions, it may already become more or less clear to you what the problem most likely is. For example:

• if there is no Internet at all - neither via wires nor via Wi-Fi, then the reason may be either access blocking on the provider’s side or a malfunction of the router. Next, we check with the provider whether everything is in order with the line and the account, and then we check the functionality of the router.
• if the Internet is available on the PC via wire, but not on any device via Wi-Fi, then the problem most likely lies in the wireless network settings of the router. The same conclusion can be drawn if the Internet appears and works without problems as soon as you connect to another Wi-Fi network from the same device
• and if it turns out that all devices are in order, and only one does not have an Internet connection, then the problem is obviously in this “client”.

Wi-Fi is connected, but the Internet does not work. What to do?

So, if your Wi-Fi is truly “connected”, but there is no Internet (websites do not load, Skype and Viber do not connect, a yellow network icon is displayed on the laptop with the notification “No Internet access”), follow these steps to resolve the problem. The steps are listed taking into account the probability factor.

1. Reboot your router

Sometimes the inexplicable happens router failure . At the same time, the local network and Wi-Fi work normally, but there is no access to the Internet. This can happen when the router operates for a very long time without reboots and when there are changes in the provider’s network. Just in case: it is written how to reboot D-Link remotely.

2. Reboot the device where there is no Internet connection (phone, laptop)

Sometimes on a smartphone (tablet, laptop) a certain failure (glitch), which can cause a similar problem. Visually, everything seems to be fine, but there is no Internet for no apparent reason. To eliminate such a failure, reboot the device.

3. Reconnect to the Wi-Fi network

This step is very important, despite its simplicity and obviousness at first glance. You need to forget the Wi-Fi network, and then connect to it again by entering the password (security key). This may resolve the issue and restore your internet connection, for example if network settings have been changed user or virus.

4. Set the correct date on your Android device

Invalid date may be causing an internet problem. In this case, sites will open, but Antiviruses may not work, Google Play Market, etc. .

5. Disable the proxy server

If on your computer or Android device the proxy server is enabled, there may also be a situation where Wi-Fi is connected, but there is no Internet. This problem usually occurs on Android.

6. Check the Internet connection settings on the router

Go to the WAN or Internet settings on the router. (). Check that you have specified correct connection parameters , such as:

• type of connection with the provider (look in the contract or on the provider’s website);
• login and password, if required (see the contract);
• is the MAC address specified correctly (check in the contract. If you reset the router, you may have to go to the Internet provider’s office with your passport and contract and ask to register a new MAC address for the router’s WAN port).

If your provider uses a PPTP connection, and the settings on your router have gone wrong and now IPoE (dynamic IP) is selected instead of PPTP, then naturally the router will not be able to connect to the Internet. In this case, the sites will not open on any device.

7. Change the wireless channel

Wireless equipment that is located nearby and operates on adjacent channels can create interference to your router. Try changing the Wi-Fi channel.

It would be even better to first check which channels are freer. This can be done using the Android app or InSSIDer for Windows.

8. Install WPA2-PSK + AES encryption for your Wi-Fi network

The WPA2-PSK encryption algorithm is the most secure. And AES encryption will provide high speed and safety. Most devices, even not new ones, work successfully in WPA2-PSK mode with the AES algorithm.

Wi-Fi is connected, but the Internet does not work: other causes of the problem

Weak signal

If there is too much distance from the client device to the router long distance, there may also be such a problem: the device has received an IP address, but there is no Internet. Therefore, you first need to check whether the Internet appears when approaching the router (if it is possible to get close). Then - if the problem is the distance - somehow try to reduce it. If the router is yours, place it in the middle of the house.

Some organizations provide free Wi-Fi, but in order to be allowed on the Internet, you need to launch a browser, enter a password, or go through some other authorization procedure. For example, indicate a phone number and enter a code from an SMS. It is better not to contact such networks and not to enter any information about yourself in order to avoid problems. It is much easier to find another access point without such nuances.

If you've done everything and you still can't connect to the Internet through an active Wi-Fi connection, there's another option: set up a static IP address. This method is not a solution in the full sense of the word, but in some cases it helps to bypass the problem and gain access to the Internet. To do this, on your smartphone, call up the properties of the connection to the Wi-Fi network, check the box Show advanced options and select Static IP:

I hope this guide helped you identify and fix your Internet connection problem and now all your devices are connected to the network, both wired and wireless. Please write questions and additions to the article in the comments.