The laptop connects to wifi but. Why won't Wi-Fi connect? Software problem

I was always a little surprised by questions like this, in which they wrote that when connected to an open (unprotected) Wi-Fi networks, the Internet does not work. Or a phone, laptop, tablet and other devices generally refuse to connect to open Wi-Fi. They asked for some advice on what could be done to solve this problem.

And today, I saw on our forum a message that says that the phone catches an unprotected Wi-Fi, connects to it without problems, but the Internet does not work. Then I analyzed the comments on the site a little, and realized that the question was very popular, and I had not yet written an article on this issue. I will correct the situation now.

Now, we will figure out why problems arise with connecting to other people’s, albeit open, wireless networks. We will try to find out if something can be done about this, and if so, what.

I want to write right away that we will look at problems specifically with the connection and operation of the Internet connection, through other people’s wireless networks that are not password protected and with which a connection can be established.

Any problems that arise when connecting to your own networks are a different story. There will simply be more ways to solve this or that error, since you have access to the settings of the router itself.

No matter how sad it may sound, but if your smartphone, tablet, laptop, etc., does not want to connect to open Wi-Fi, or the Internet does not work after connecting, then most likely there is no way to correct this situation. it will work out. In about 90% of cases, you will have to deal with it. I wrote something sadly.

Why? Yes, because we don’t know what kind of access point there is, whose it is, how it’s configured, and most importantly, we don’t have access to the settings of this router, because it’s not ours, but a neighbor’s, some store, cafe, etc. etc. I think this is clear and logical.

Here, let’s take for example the question that I wrote about at the beginning of the article:

It was posted on our forum, in this topic: .

It’s a good question, but do you think it’s possible to give something substantive to this question? I also think not. Maybe the Internet is simply not paid for there. There is a connection, but the Internet does not work. Standard situation. Maybe there is some kind of blocking enabled, or the phone didn’t like the channel it’s on.

I would highlight two main problems. We will divide the article into them. It will be easier and clearer this way.

Can't connect to an open Wi-Fi network

This is probably the most popular question. On laptops (And desktop computers) , it could be an error " ", or something else.

On mobile devices (phones, tablets), it could be...” (by the way, laptops can also have this “Identification...” problem), " ". There may be other errors.

If you can’t connect, then you need to think about why this network is not protected. Yes, there are people who simply forget to do this, or they don’t need it. They just let everyone use their internet. (this is the case with home access points). But, I am sure that in most cases, there is no password because filtering by MAC addresses is enabled (read). Which protects even better than a password.

What can you try to do?

Typically, when connecting to unsecured networks, the signal strength is not very good. Make sure that the network level is at least two divisions high. Otherwise, connection problems may arise precisely because of a weak signal.

If you are connecting a laptop (regular computer with adapter), then make sure that in the properties of the wireless adapter, in the IPv4 protocol, it is set to receive IP automatically. Like this:

I showed the example of Windows 7. In Windows 8, everything will be exactly the same.

If the problem occurs on mobile devices that run on Android OS or iOS (iPhone, iPad), then I don’t even know what to advise. Except how to monitor the signal level. There don't seem to be any special settings that would interfere with the connection.

Internet does not work when connected to unsecured Wi-Fi

Well, the second problem is when everything is connected, but the Internet does not work.

On a laptop, there will be a status “No Internet access” and a yellow triangle next to the network status (in), but on mobile devices the Internet simply will not work, and the Wi-Fi icon will most likely be gray instead of blue (depends on OS, firmware version, etc.).

How to fix the problem?

If the problem is on the computer, then check the IP settings, as I showed in the screenshot above. Disable antiviruses and firewalls, they may block access to the Internet.

If the problem is mobile device, then check if they are enabled manual settings proxy. How to do this, I wrote in the article (after the heading “checking if the proxy server is disabled”).

In other cases, the problem is most likely on the side of the router itself. Or, your device cannot work with the parameters specified in the router settings.

Afterword

As I wrote above, if the phone does not connect to the network, then you are unlikely to be able to do anything. If it connects, but there is no Internet access, then the same thing. The network is not ours, we don’t know what’s going on with it, we can’t change the settings. Almost all problems that arise with Wi-Fi are to blame for the access points themselves. And, if you try to fix something, then you need to change the settings in them. Provided that your device works normally with other networks.

If you have anything to add on this issue, then you can do so in the comments below. There you can leave your questions.

Transmitting data without using cables literally not so long ago seemed like something out of science fiction, but today wireless WiFi network at home, at work or in the nearest cafe no longer surprises anyone. But even with such a connection, some problems may occur. Connection error is a phenomenon that occurs quite often. Let's look at the most common problems and the simplest methods for eliminating them.

Wireless network connection: no connection. What is the reason?

As for the most common reasons, they can be divided into two main types: hardware problems (non-working hardware) and software errors.

In the first case, as is already clear, you need to carry out a full diagnostic of the equipment, and then make a decision on its repair or replacement (this applies to network cards, routers, and mobile devices, and external or internal Wi-Fi modules). In the second case, there are several situations where there is no wireless network connection (no connection). Among the main ones are the following:

• disabled module or ;
• incorrectly entered password;
• router problems;
• incorrect connection settings;
• missing, incorrectly installed or outdated network device drivers;
• lack of an established network;
• exposure to viruses.

Problems with viruses, for obvious reasons, will not be considered, since any user must take care of protecting their system on their own. We will partially touch on the absence of a network, if for some reason it was installed in the system, but then disappeared (this, unfortunately, also happens). Finally, we will not dwell on the fact that the user might have forgotten or entered incorrectly WiFi password-networks, and problems from providers. These situations are not so significant in our case.

Wireless network connection: no connection. What to do in the simplest case?

First, let's look at the simplest situation. Let's say that at some point the wireless network connection is lost. Perhaps the reason is short-term software glitch. What do most users usually do in such cases? They simply reboot the system (after all, everything worked before).

If this does not help, and the signal loss time is known at least approximately, one of the options for solving the problem is that when you try to connect to existing network If a connection error occurs, the system may simply roll back to its previous state through the corresponding section of the Control Panel. But, as practice shows, the problem is usually much deeper.

Diagnostics of connection using the system

If for some reason the wireless network Wi-Fi connection disappears, you can find out the reason using Windows tools. If you call up the menu by right-clicking on the network icon in the system tray, you can use the troubleshooting tool in it.

The system will independently carry out the analysis and then produce the appropriate result. Please note: this tool does not fix anything, but only helps determine the essence of the problem.

Checking Wi-Fi module activity

Many experts cite user inattention or negligence as one of the most common reasons for lack of communication.

For the most part, this applies to owners of laptops that do not have a special switch to activate the built-in Wi-Fi module, and turn it on or off by using a combination of a key with a special Fn button. It is clear that even when typing using the so-called hot keys, it was possible to easily and completely accidentally turn off the adapter. Therefore, first you need to make sure that it is in active mode.

Resetting your router

Sometimes the reason that there is no wireless network connection (no connection) can be a short-term malfunction of the router. This situation is most often observed with inexpensive routers of the TP-Link series.

And in this case, it is recommended to use the simplest reset method. You can do two things: either completely turn off the power for about 10 seconds, or press the special reset button on the back of the device and hold it for 30 seconds.

Identifying Network Settings

Now, if it is not determined, let's look at the main network settings. To view them, you should enter the network management section and shared access from the “Control Panel” or from the click menu on the network connection icon and use the section for changing parameters

Here you need to find the TCP/IPv4 protocol (if IPv6 is not used) and click the properties button. As a rule, most providers provide services automatic detection parameters, which should be fixed in the settings. It is worth paying attention to the fact that the use of a proxy server for local addresses must be deactivated (unless otherwise provided). IN otherwise you just need to enter all the parameter values ​​in accordance with the settings provided by the provider when connecting.

Correcting connection parameters on the router

If after this the connection problem remains, it may be due to the settings of the router itself.

Just in case, it’s worth entering the router settings menu through any web browser by entering the appropriate address (192.168.0.1 or 1.1), then in the section wireless connection(usually Wireless) make sure it is Enabled.

Troubleshooting driver problems

Another network problem may be that the system has missing, incorrectly installed, or outdated drivers network card. You can make sure that the device is not working in the “Device Manager”, which can be called either from the “Control Panel”, or from the computer administration section, or from the “Run” menu using the devmgmt.msc command.

A non-working device will be marked with a yellow marker. This is a direct indication that something is wrong with the driver. But it also happens that it is not displayed among problem devices. This is only due to the fact that the system sets the most suitable driver, considering it optimal.

In any case, it will have to be reinstalled or updated. This can be done directly from several menus. It is recommended that you first completely remove the old driver, and only then install a new one, but do not choose from what the system offers, but find the latest software for it in advance. of this device on the Internet.

To avoid doing such things, it is better to install a program like Driver Booster, which will find and install the latest drivers for absolutely all devices. It is clear that to do this, you will have to go with your laptop to the same cafe where there is a connection, and there use the WiFi password to enter the network (after all, there is no connection at home). The update process will take a maximum of 10-15 minutes, after which a reboot will follow.

Reset settings from the command line

If the network is still detected, you can still try the following steps. Calling command line with admin rights (cmd in the “Run” console), after which we enter the command proxycfg -d, and after pressing the enter key, two more - net stop wuauserv and net start wuauserv (after each - also “Enter”). These simple steps can also help.

If the network is not detected at all...

Finally, last problem when absent It is quite possible that due to some reasons, including the impact of viruses, the previously created network was simply deleted.

In this case, you need to go to the section for managing shared networks and make sure that the wireless network appears in the list available connections. If there is none, you will have to create it again by selecting the appropriate item. It will take a minimum of time.

If there is a network, but all the above methods for fixing the problem do not help, you can simply try to delete it entirely, then create it again and make the appropriate TCP/IP protocol settings.

Conclusion

In conclusion, it remains to add that these are only the main, most common problems and methods for solving them, which any user can use to resolve failures. Various types of commands that allow you to carry out full testing IP connections or assigned MAC addresses, pinging, etc., since they may seem quite complicated for ordinary users to understand. In other cases, even the simplest remedies will help. However, this in no way applies to cases where the equipment fails. No software methods will help here, no matter how hard you try.

This instruction contains step-by-step information on what to do if the Internet does not work on a computer with Windows 10, 8 and Windows 7 in various scenarios: the Internet disappeared and stopped connecting for no reason via the provider’s cable or through a router, it only stopped working in the browser or certain programs, works on the old one, but does not work on the new computer and in other situations.

Note: In my experience, about 5 percent of the time (and that's not a small number) the reason the Internet suddenly stops working is with the message "Not connected. No connections available" in the notification area and " Network cable not connected" in the list of connections indicates that the LAN cable is really not connected: check and reconnect (even if visually it seems that there are no problems) the cable both on the side of the computer’s network card connector and on the side of the LAN connector on the router, if the connection is performed through it.

If the first option does not suit your situation, then I recommend following these steps to check your Internet connection:

Let's stop at point 6 - connection via local network shows that everything is fine (on, there is a network name), but there is no Internet (this may be accompanied by the message “No Internet access” and yellow exclamation mark next to the connection icon in the notification area).

LAN connection is active, but there is no Internet (no Internet access)

In a situation where the cable connection works, but there is no Internet, there are several common causes of the problem:

1. If the connection is made through a router: there is something wrong with the cable in the WAN (Internet) port on the router. Check all cable connections.
2. Also, for the situation with the router: the Internet connection settings on the router have gone wrong, check (see). Even if the settings are correct, check the connection status in the router’s web interface (if it’s not active, then for some reason the connection cannot be established, perhaps the 3rd point is to blame).
3. Temporary lack of Internet access on the part of the provider - this does not happen often, but it does happen. In this case, the Internet will not be available on other devices via the same network (check if possible), the problem is usually fixed within a day.
4. Problems with network connection settings (DNS access, proxy server settings, TCP/IP settings). Solutions for this case are described in the article mentioned above and in a separate material.

For the 4th point of those actions that you can try first:

If these two methods do not help, try more sophisticated methods of solving the problem from the separate instructions given above in paragraph 4.

Note: if you have just installed a router, connected it to your computer with a cable, and there is no Internet on the computer, then most likely you simply have not configured your router correctly yet. Once this is done, the Internet should appear.

Computer network card drivers and disabling LAN in BIOS

If the problem with the Internet appeared after Windows reinstallation 10, 8 or Windows 7, as well as in cases where in the list network connections there is no local network connection, the problem is most likely caused by the fact that necessary drivers network card. Less often - because the Ethernet adapter is disabled in the BIOS (UEFI) of the computer.

IN in this case the following steps should be followed:

Perhaps in this context it will be useful: (if there are unknown devices in the list in the task manager).

Network card parameters in BIOS (UEFI)

Sometimes it may turn out that the network adapter is disabled in the BIOS. In this case, you definitely won’t see network cards in the device manager, and local network connections in the list of connections.

The parameters of the computer's built-in network card can be located in different BIOS sections, the task is to find and enable it (set the value to Enabled). This might help: (also relevant for other systems).

Typical BIOS sections where the required item may be located:

• Advanced - Hardware
• Integrated Peripherals
• On-board device configuration

If the adapter is disabled in one of these or similar sections of the LAN (may be called Ethernet, NIC), try turning it on, saving the settings and restarting the computer.

Additional information

If by now you have been able to figure out why the Internet is not working, as well as making it work, the following information may be useful:

• In Windows, Control Panel - Troubleshooting has a tool to automatically fix Internet connection problems. If it does not fix the situation, but provides a description of the problem, try searching the Internet for the text of the problem. One of the common cases: .
• If you have Windows 10, look at the following two materials, they may work: , .
• If you have new computer or motherboard, and the provider restricts access to the Internet by MAC address, then you should provide him with a new MAC address.

I hope that one of the options for solving the problem with the Internet on a computer via cable was suitable for your case. If not, describe the situation in the comments, I will try to help.

A fairly common problem today is that WiFi on a laptop does not connect. Typically, the lack of data transmission via the wireless interface is due to incorrect software settings. The first item on this list is accidentally turning off the adapter on the keyboard or using a special toggle switch on the case. Next, you need to check the driver (the program that controls the operation of the adapter) and, if necessary, reinstall it. At the last stage, we check the network settings. Phased

In most cases, following all these steps will eliminate the problem when WiFi on the laptop does not connect.

Turn on the adapter

Most modern mobile PCs have an enhanced function keyboard on their keyboard. It can be activated by pressing a special key - “Fn”. At the same time standard set symbols stops working, and you can only use additional ones. It consists of a key with an antenna and waves extending to the sides. On most models it is in the functional set “F1” ... “F12”. If you press “Fn” immediately and without releasing its key with the antenna and waves extending to the sides, an inversion of the current state of the adapter will occur. If it was turned on, it will turn off. To bring him back to initial state, you need to press the previously given key combination again. It is important to pay attention to LED indicator WiFi. If it is turned off, then it will have to turn on, then the adapter will be in the on state, and it will be possible.

The second option to turn off the wireless network card is using the toggle switch. Its operating principle is similar to that previously given, with the same combination on the keyboard. When moving it from one position to another, the picture will be similar - WiFi on the laptop does not connect and the corresponding indicator does not light up. To turn on the adapter, it must be returned to its original state. Depending on model

mobile PC, both the first and second shutdown methods can be used. In premium models, a combination of these is possible.

Checking the driver

Next, you need to check that the network adapter driver is installed correctly. Failure to do so may result in the laptop not connecting to WiFi. First you need to find the disk that comes with the device. If it is not there, then download the installer from the official manufacturer’s website on the Internet. Then go to Start\Panel Here we open the “Network adapters” item and look at wireless card. If there are no icons opposite it, then we proceed to the next stage. We highlight our wireless adapter left click the mouse and press “Del”. This removes existing drivers. Then we start installing new ones from the disk or downloaded file. After this, it is recommended to reboot the system. If this does not solve the problem, move on to the next step.

Checking network settings

At the final stage, we check the connection settings. To do this we open

double-click the left mouse button “Current connections” (shortcut with increasing sticks on the right side. In the list that opens, select the properties of the required one. Next, you need to check the type of encryption (it should be the same as on the router) and the password for access. If the password has accidentally changed, then you need to check your PC for viruses. After all three steps, this problem when WiFi does not connect on a laptop is solved in most cases.

Conclusion

If all the operations outlined in the article have been completed, but the result is not achieved, then it makes sense to seek help from a qualified specialist. As practice shows, in most cases, the proposed manipulations can solve a problem in which the laptop has stopped connecting to WiFi, and wireless transmission is restored.