If the computer is not connected to Wi-Fi, it is usually not a serious computer or network failure, but a minor problem. You can troubleshoot it as follows: 1. Check whether the Wi-Fi switch and flight mode are on, and confirm that the wireless function is enabled; 2. Restart the computer, router and optical module to refresh the network status; 3. Check whether the IP address conflicts or failed to obtain, try to release and renew the IP or set a static IP; 4. Update the wireless network card driver, forget the network and reconnect it, and check whether the firewall or security software is intercepted, and use the system's own network tools to repair it if necessary. Operate in sequence and most problems can be solved.
Your computer is not connected to Wi-Fi, usually either a computer problem or a network problem. Don’t rush to restart or reinstall first. Most of the time, it’s a small problem, and you can solve it by troubleshooting it.

1. Check Wi-Fi switches and flight modes
Many people's first reaction when they encounter the Wi-Fi that cannot be connected is that "the router is broken", but in fact, the settings of their computers are not turned on correctly.
- Confirm whether the wireless function is turned on: Some notebooks have physical switches or shortcut keys (such as Fn-specific function keys) to control the wireless network card.
- Check whether the flight mode is accidentally touched on: Windows and macOS have flight modes, and once it is turned on, all wireless connections will be automatically disconnected.
If you are not sure how to check, you can check whether there is any Wi-Fi icon in the system tray or menu bar, and click in to see if there is a list of available networks.

2. Restart the device and try it
This trick sounds old-fashioned, but it's really useful. Many connection problems are caused by temporary system errors, and restarting can refresh the network status.
- Restart the computer first, then restart the router and optical camera.
- It is recommended to unplug the power supply when restarting the router, and wait for more than ten seconds before plugging it back.
- If you are using public Wi-Fi or corporate network, you may also need to log in to the authentication page again.
Sometimes you don't notice that the router is actually "fake running" - the lights are on, but the interior is stuck.

3. Check whether IP address conflicts or acquisition failed
IP conflicts are common but easily overlooked issues. You can view it in the following ways:
- Windows: Press Win R, enter
cmd
, and then enteripconfig
- macOS: Open the terminal and enter
ifconfig
If you see:
- The IP address is
0.0.0.0
or169.xxx
, which means that the address was not successfully obtained. - At this time, you can try to release and renew the IP:
- Windows: Enter:
ipconfig /release ipconfig /renew
- Windows: Enter:
You can also manually allocate static IP in the router background to avoid every conflict.
4. There is a problem with the driver or system settings
Sometimes the problem lies in the computer itself, especially after updating the system, compatibility issues may arise.
- Update wireless network card driver: You can find "Network Adapter" in the device manager and right-click to select Update Driver.
- Forgot network reconnect: Enter Wi-Fi settings, "Forgot" the current network, and then reconnect it once.
- Check whether the firewall or security software blocks network access.
If none of the above methods work, you can try using the system's own network troubleshooting tool, which can sometimes automatically fix some basic problems.
Basically, these common reasons and solutions are all about them. Most of the time, either the network problem or the computer settings are stuck. Check it in order and it can basically be done.
The above is the detailed content of Why is my computer not connecting to Wi-Fi?. For more information, please follow other related articles on the PHP Chinese website!

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