Most of the problems with the settings, drivers or signal that cannot be found in the computer. 1. First check whether the WiFi switch is on, turn off the flight mode, try the Fn function key or system settings confirmation; 2. Restart the wireless network card and update the driver, disable it through the device manager and then enable or manually update the driver; 3. Troubleshoot the router signal problem, get close to the router to test, log in to the background to set the channel to automatic or 1~11, and distinguish between 5GHz and 2.4GHz names; 4. Check whether the system service is normal, ensure that the WLAN AutoConfig service is running, and use the network troubleshooting tool to fix the exception. Sequentially checking can basically solve the problem.
Sometimes it is really a headache to find WiFi when your computer suddenly cannot find it. In fact, in most cases, this problem is not that the hardware is broken, but that there is some minor problem with the settings, drivers or signal itself. Don't rush to restart the router or reinstall the system, start with the simplest troubleshooting.
1. Check WiFi switch and flight mode
Many people may not notice that the WiFi function on the laptop is turned off, or the flight mode is accidentally turned on. You can check whether there are WiFi icon buttons on the keyboard (usually F days), or whether the network icon in the lower right corner of the screen is gray or forked.
- Shortcut keys are generally Fn F2/F6/F12 combinations, different brands are different
- You can also confirm whether WiFi is turned off in "Settings> Network and Internet> Flight Mode".
If it is an external network card, check if it is plugged in, or try changing to a USB port.
2. Restart the wireless network card or update the driver
Sometimes there is a problem with the wireless network card, which will lead to no network search. At this time, you can try manually disabling and enabling the network card, or updating the driver.
The operation steps are as follows:
- Press Win X and select Device Manager
- Expand "Network Adapter" and find your wireless network card (usually with the words Wireless or Wi-Fi)
- Right-click → Disable the device → Wait for a few seconds → Enable
- If it doesn't work, you can select "Update Driver"
If you are not sure whether the driver is the latest, you can also download and install it on the official website. Especially after upgrading the system, compatibility issues may arise.
3. The router signal is too weak or the channel setting problem
Sometimes it is not a problem with the computer, but the signal on the router is too weak, or some incompatible channels are set up.
For example: Some routers set WiFi channels to high levels such as 12 to 13, and older network cards may not be able to recognize them. Also, dual-band routers only broadcast 5GHz, and some old devices cannot be connected.
You can try:
- Close to the router to see if you can find it
- Log in to the router background and check whether the channel settings are automatic or between 1 and 11
- Name 5GHz and 2.4GHz separately to see which one can be found by the computer
4. System settings or service abnormalities
If some network services on Windows are disabled, it will also lead to the inability to scan WiFi.
You can try the following method:
- Press Win R and enter
services.mscto enter - Find the "WLAN AutoConfig" or "Wired AutoConfig" service
- Make sure their status is "running", if not, right-click to start
In addition, some users have reported that this problem occurs after the system is updated, so you can try using the Network Troubleshooting Tool (Settings → Network and Internet → Status → Network Troubleshooting).
Basically these common reasons. Start with the simplest checks, such as switch and flight modes, and then go deeper into the drive and system levels. Many problems can actually be solved without reinstalling the system. The key is to find the right direction.
The above is the detailed content of Windows can't find wifi network. For more information, please follow other related articles on the PHP Chinese website!
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