Data transfer without cablesliterally not so long ago seemed to be something from the realm of fantasy, but today the wireless WiFi network at home, at work or in the nearest cafe already surprises no one. But even with this connection, there may be some problems. Connection failure is a common occurrence. Consider the most characteristic problems and the simplest methods to eliminate them.
Wireless network connection: no connection. What is the reason?
As for the most common causes, they can be divided into two main types: problems at the hardware level (non-working equipment) and software errors.
In the first case, as is already clear, you need to holdcomplete equipment diagnostics, and then make a decision about repairing or replacing it (this applies to network cards, routers, 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 distinguish the following:
- disabled module or Wi-Fi adapter;
- Incorrect password entered
- router issues;
- Incorrect connection settings;
- missing, incorrectly installed or outdated network device drivers;
- lack of an established network;
- exposure to viruses.
Problems with viruses for obvious reasonsThey 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 the 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 may have forgotten or incorrectly entered the password of the WiFi network, and problems from providers. These situations in our case are not so significant.
Wireless network connection: no connection. What to do in the simplest case?
To begin, consider the simplest situation.Suppose that at some point the wireless network connection is gone. Perhaps the reason is a short-term software failure. What do most users usually do in such cases? They just reboot the system (after all, everything worked before).
Если это не помогает, а время пропадания сигнала It is known at least approximately, one of the solutions to the problem that when trying to connect to an existing network a connection error pops up, a normal system rollback to the previous state can be done through the corresponding section of the “Control Panel”. But, as practice shows, the problem is usually much deeper.
Diagnostics of system connection
If for some reason the wireless networkWi-Fi connection disappears, you can find out the reason using Windows tools. If you bring 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, after which it will issue the corresponding result. Please note: this tool does not fix anything, but only helps to determine the essence of the problem.
Check the activity of the Wi-Fi module
One of the most common reasons for lack of communication, many experts call inattention or carelessness of users.
Mostly this applies to ownerslaptops that do not have a special switch to activate the built-in Wi-Fi module, and enable or disable it 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, you could easily and completely accidentally disable the adapter. Therefore, first you need to make sure that it is in active mode.
Reset router settings
Sometimes the reason for what is missingWireless network connection (no connection), a short-term failure of the router may occur. Most often this situation is observed with inexpensive TP-Link series routers.
And in this case it is recommended to usethe simplest method of resetting the settings of the router. You can do in two ways: either completely turn off the power for about 10 seconds, or press a special reset button on the back of the device and hold it for 30 seconds.
Identification of network settings
Now if the wifi wireless network is notdetermined, look at the basic network settings. To view them, you should enter the Network and Sharing section of the “Control Panel” or from the menu of clicking on the network connection icon and use the section for changing network adapter settings.
Here you need to find the TCP / IPv4 protocol (if notIPv6 is used) and click the properties button. As a rule, most providers provide services for automatic detection of parameters, which should be fixed in the settings. It should be noted that the use of a proxy server for local addresses must be deactivated (if not provided otherwise). Otherwise, you just need to enter all the values of the parameters in accordance with the settings that were provided by the provider during connection.
Correction of connection parameters on the router
If the connection problem still remains after that, it is possible that it consists in the settings of the router itself.
На всякий случай стоит войти в меню параметров router through any web browser by entering the appropriate address (192.168.0.1 or 1.1), then in the section of the wireless connection (usually Wireless) to make sure that it is active (Enabled).
Troubleshoot driver issues
Another network problem may be thatMissing, incorrectly installed or outdated network card drivers. You can make sure that the device does not work in the Device Manager, which can be called from the Control Panel, at least from the computer administration section, or from the Run menu with the command devmgmt.msc.
Nonoperating device will be yellow.marker. This is a direct indication that something is wrong with the driver. But it also happens that among the problem devices the network card is not displayed. This is due only to the fact that the system installs the most suitable driver for it, considering it to be optimal.
In any case, it will have to be reinstalled orupdate. You can do this directly from several menus. It is recommended that you first completely remove the old driver, and only then install the new one, but not choose what the system suggests, but find the freshest software for this device on the Internet beforehand.
So as not to do such things betterinstall a program like Driver Booster that will find and install the latest drivers for absolutely all devices. It is clear that for this you will have to go with the laptop to the same cafe where there is a connection, and use the WiFi password to enter the network (there is no connection at home). The update process will take a maximum of 10-15 minutes, followed by a reboot.
Reset settings from the command line
If the network is still determined, you can trystill perform the following actions. Call the command prompt with admin rights (cmd in the Run console), then write the proxycfg –d command, and after pressing the enter key, two more - net stop wuauserv and net start wuauserv (after each one, too, “Enter”). Such simple actions can also help.
If the network is not defined at all ...
Finally, the last problem, when missingwireless network connection (no connection). It is possible that, due to some reasons, among which the effects of viruses are not excluded, the network created earlier was simply deleted.
In this case, you need to go to the management section.shared networks and ensure that the wireless network is displayed in the list of available connections. If there is none, it will have to be recreated by selecting the appropriate item. Time is required at least.
If there is a network, but all the above methodstroubleshooting does not help, you can simply try to remove it completely and then re-create and make the appropriate TCP / IP protocol settings.
Conclusion
In conclusion, it remains to add that it is onlyThe main, most common problems and methods for solving them, which any user can use to eliminate failures. It was not specifically considered all sorts of commands that allow to conduct a full test of IP connections or assigned MAC addresses, pinging, etc., since they can be quite complicated for ordinary users to understand. In other cases, even the simplest means will help. However, this in no way applies to cases where the equipment fails. No program methods will help here, no matter how you try.
