Frequently identified in Device Manager as USB\VID_0BDA&PID_C811 .
You can install or update the driver through several reliable methods: : Plug in your USB adapter.
Expand , right-click "Realtek 8811CU Wireless LAN 802.11ac USB NIC," and select Update driver . Choose Search automatically for drivers . Common Troubleshooting for Windows 11 Choose Search automatically for drivers
Download the .zip file, extract it, and run Setup.exe as an administrator. Restart your computer after the installation finishes. : Right-click the Start button and select Device Manager .
Check if the driver doesn't install automatically. Manual Installation from Manufacturer : : Right-click the Start button and select Device Manager
Navigate to and click Check for updates .
Visit the official Realtek Download Center to find the latest "WLAN USB driver" package. as well as Windows 10
Fully compatible with Windows 11 (64-bit), as well as Windows 10, 8.1, and 7. How to Install and Update on Windows 11