When you encounter a laptop that cannot connect to Wi-Fi, you must first confirm whether it is a router problem. If other devices can be connected normally, the problem may lie in the laptop itself. 1. Check the Wi-Fi switch and connection status of the notebook to ensure that the wrong network or frequency band is not selected; 2. Try restarting the notebook and router and resetting the connection status; 3. View and update the wireless network card driver, check the system settings such as flight mode; 4. If there is a problem with IP or DNS, you can try to release and renew the IP, or manually set DNS, and run the network troubleshooting tool if necessary; if the above method is invalid, it may be a hardware failure, so it is recommended to contact a professional to deal with it.
It is indeed annoying to encounter a laptop that cannot connect to Wi-Fi, but don't worry, the problem is not that complicated most of the time. First confirm whether it is a router problem, such as whether other devices can connect normally. If your laptop is the only one that can’t access the Internet, it is likely that there is a minor problem with the computer’s settings or hardware.
1. Check the most basic switches and connections
In many cases, Wi-Fi cannot be connected just because you forgot to turn on the switch or choose the wrong network.
- The notebook has a physical Wi-Fi switch, remember to turn it on (some are on the side, and some are function keys on the keyboard)
- Make sure that Wi-Fi is enabled, and Windows can click in from the network icon in the lower right corner to view it
- Try connecting to other Wi-Fi to see if it is a problem with the current network
Sometimes you accidentally connect the wrong SSID (especially a router with two frequency bands at home), remember to re-select the correct one after disconnecting.
2. Restart the device and router
Although this operation is simple, it can really solve many problems.
- Turn off the Wi-Fi on your laptop and wait a few seconds before turning on
- Unplug the router and wait for 30 seconds before plugging it back
- If it is a company or school network, you may also need to log in to the authentication page again
These steps can reset the connection state and clear some temporary errors.
3. View driver and system settings
If the laptop cannot connect to Wi-Fi, it may also be a software-level problem.
- Open "Device Manager" to see if there is a yellow exclamation mark on the wireless network card
- Update wireless network card driver (the latest version can be downloaded through the official website)
- Check if the flight mode has been turned on in Windows settings
Sometimes compatibility issues occur after system updates, and rolling back the driver or reinstalling it can also solve the problem.
4. What should I do if there is any problem with the IP address and DNS?
Even if you are connected to Wi-Fi, you may not be able to access the Internet due to abnormal IP allocation.
- Open the command prompt and enter
ipconfig /releaseandipconfig /renew - Or try manually setting the IP address and DNS (for example, using 8.8.8.8.8)
If you are not sure how to operate, running the network troubleshooting tool directly may automatically fix the problem.
Basically, these common reasons and treatment methods. Some problems seem serious, but they can be solved by restarting them; if they still don’t work, it may be a hardware failure. It is recommended to find a professional to investigate further.
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