Taming the Realtek 8723DU: How to Install the 802.11n USB NIC Driver on Windows 11
If Windows Update fails, download the driver package via another PC and transfer it via USB stick.
Do not use the CD that came with the adapter. It contains drivers for Windows 7/8. You need a modern package. As of early 2026, the working version for Windows 11 (22H2, 23H2, and 24H2) is based on the (version 1030.45.422.2021 or newer).
Do use "driver updater" tools or random EXE files from third-party sites. The 8723DU is a common chipset, but many fake drivers contain malware. Stick with Realtek's official package or the GitHub driver above.
. To ensure stability, it is recommended to use driver version 1030.44.809.2021
: For external USB versions, ensure the dongle is plugged into a USB 2.0 port