The Realtek 8723DU Wireless LAN 802.11n USB NIC is compatible with Windows 11, with drivers available via the Microsoft Update Catalog and OEM support pages for versions 21H2 through 24H2. Installation via Windows Update or Device Manager is recommended, while troubleshooting for connection issues involves driver reinstallation and ensuring the WLAN AutoConfig service is active. For the latest driver options, visit the Microsoft Update Catalog Microsoft Update Catalog Realtek USB Wireless Lan Utility Not Working
Check the box that says and click Uninstall.
" (it may appear as an "Unknown Device" if no driver is present).
The Realtek 8723DU Wireless LAN 802.11n USB NIC is a USB-based wireless adapter that supports the 802.11n wireless standard, providing data transfer rates of up to 150 Mbps. This adapter is commonly used in desktop computers, laptops, and other devices that lack built-in Wi-Fi capabilities or require an upgrade to their existing wireless adapter. realtek 8723du wireless lan 80211n usb nic driver windows 11
Go to Settings > Windows Update > Advanced Options > Optional Updates . Look for a "Realtek - Net" update here, as wireless drivers are often tucked into this menu. Manual Update via Device Manager: Right-click the Start button and select Device Manager .
Plug the USB NIC into a different USB port (preferably a USB 3.0 port on the back of the motherboard if using a desktop) and reinstall using Method 1 or Method 2. 3. Low Signal Strength or Extremely Slow Speeds
Select , choose Realtek Semiconductor Corp. from the manufacturer list, and look for the Realtek 8723DU Wireless LAN 802.11n USB NIC option. Click Next to install. Method 3: Utilizing the Official Manufacturer Website The Realtek 8723DU Wireless LAN 802
If the above fails with a "Hash mismatch" or "Digital signature" error, Windows 11 is blocking the driver outright. You have two choices: get a modern signed driver or temporarily disable signature enforcement.
Some routers negotiate IPv6 poorly with the 8723DU.
The Realtek 8723DU is a highly popular, low-cost Wi-Fi and Bluetooth combo chipset. It connects via USB and uses the 802.11n standard. While it works reliably on older systems, setting it up on Windows 11 can sometimes present compatibility challenges. " (it may appear as an "Unknown Device"
Windows 11 introduces new network stack improvements. If you are using an older driver designed for Windows 10 or 8.1, you might encounter issues such as: Low signal strength or slow throughput "No Internet" errors Blue Screen of Death (BSOD) errors related to rtwlanu.sys
Keep your performance expectations realistic when using this specific hardware on modern operating systems: Specification 802.11n (Wi-Fi 4) Frequency Band 2.4 GHz Only Max Theoretical Speed Up to 150 Mbps Bluetooth Version Integrated Bluetooth 4.2