First check the flight mode and WiFi switch to make sure that the flight mode is not turned on and WiFi is on, and make sure that the physical switch or shortcut key (such as Fn F2) of the notebook is not turned off; 2. Run the network troubleshooting, and run the "Network Adapter" diagnostic tool in Settings → System → Troubleshooting → Other troubleshootings to automatically fix the problem; 3. Update or reinstall the WiFi driver, you can automatically update or restart the system through the Device Manager, uninstall and restart the system, or go to the official website of the computer and network card manufacturer to download the latest driver (such as Intel, Realtek, MediaTek); 4. Reset the network settings, click "Network Reset" in "Settings → Network and Internet → Advanced Network Settings" and restart the computer, and be careful that all WiFi passwords will be cleared; 5. Check WLAN AutoConfig, DHCP Client, DNS Whether the client and other key services have been started, if they are not running, they need to be started manually and set to automatic; 6. Check whether the wireless network card in the BIOS is disabled, and go to the official website of the computer to update the BIOS or chipset driver; 7. If it still cannot be solved, you can temporarily use the USB to network cable adapter or the mobile phone USB shared network to deal with the problem; if all methods are invalid, it may be a hardware failure. It is recommended to contact after-sales inspection. In most cases, WiFi functions can be restored by updating the driver and network reset.

Windows 11 WiFi not working is a common but headache-inducing problem that can be caused by driver issues, system settings, hardware failures, or network configuration errors. Below are some practical troubleshooting and solutions to help you restore WiFi connection step by step.

1. Check the flight mode and WiFi switches

First, confirm whether the most basic settings are correct:

• Click the network icon in the lower right corner of the taskbar to see if "Flight Mode" is turned on. If it is turned on, please turn it off.
• Make sure that "WiFi" is on.
• Some notebooks have physical WiFi switches or shortcut keys (such as Fn F2) to check whether they have been turned off by mistake.

Tip: The shortcut keys of some brand notebooks (such as Dell and Lenovo) will control the enabled status of the wireless network card. You can try the key combination if it doesn’t respond.

2. Run the network troubleshooter

Windows's own network diagnostic tool can automatically detect and fix some problems:

1. Open "Settings" → "System" → "Troubleshooting" → "Other Troubleshooting"
2. Find "Network Adapter" and click "Run"
3. Follow the prompts and the system will try to fix the FAQ

This tool can sometimes solve problems such as driver not enabled and IP configuration errors.

3. Update or reinstall the WiFi driver

Driver problems are the most common cause of WiFi failure.

Method 1: Update the driver through the device manager

1. Right-click the "Start" menu → "Device Manager"
2. Expand Network Adapter
3. Find your wireless network card (names usually include Wireless, Wi-Fi, 802.11 or brands such as Intel, Realtek, Qualcomm)
4. Right-click → "Update driver" → "Automatically search for drivers"

Method 2: Uninstall and reinstall the driver

If the update is invalid:

1. Right-click the wireless network card in the device manager → "Uninstall the device"
2. Check "Delete the driver software for this device" (optional, more thorough)
3. Restart the computer, Windows will automatically reinstall the driver

Method 3: Manually download the driver

Go to the official website of computer brands (such as HP, Dell, Lenovo) or the official website of wireless network card manufacturers (Intel, Realtek) to download the latest driver.

Common network card brand identification:

• Intel: Wireless AX200, AC 7265, etc.
• Realtek: RTL8821CE, RTL8852AE
• MEDIATEK / MEDIATEK: Common in newer notebooks

4. Reset network settings

If the WiFi icon disappears or cannot scan to the network, try resetting the network:

1. Open "Settings" → "Network and Internet" → "Advanced Network Settings"
2. Scroll to the bottom → "Network Reset"
3. Click "Reset Now" → Restart the computer

?? Note: This will clear all saved WiFi passwords and network configurations, but will resolve deep configuration errors.

5. Check whether the service is running normally

Ensure that critical network services are running:

1. Press Win R and enter services.msc to enter
2. Find the following service to make sure the status is "Running":
   • WLAN AutoConfig
   • DHCP Client
   • DNS Client
3. If it is not running, right-click → "Start" and set the startup type to "Auto"

6. BIOS and system updates

Sometimes the problem lies at the firmware level:

• Enter the BIOS (press F2, F10, or Del keys when powering on) to check whether the wireless network card is disabled (such as Wireless LAN or WLAN Device)
• Go to the official computer website to check whether there are Windows 11 dedicated BIOS or chipset driver updates

7. Temporarily use alternative connection methods

If WiFi cannot be fixed for the time being:

• Use USB to network cable adapter (wired network)
• Share the network with USB on your mobile phone (Settings → Hotspots and Sharing → USB Sharing Network)

This allows you to download the driver online or update the system.

Basically these common solutions. In most cases, the update driver network reset can be done. If all methods are invalid, it may be that the wireless network card hardware is damaged. It is recommended to contact after-sales inspection.

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