is often a combo chip (Wi-Fi + Bluetooth), driver issues can affect both.

Built-in Wi-Fi in older laptops or affordable USB dongles. Why Do You Need the Updated Windows 11 Driver?

Disable Windows Power Management for the adapter.

In conclusion, installing and troubleshooting the Realtek 8723DU Wireless LAN 802.11n USB NIC driver on Windows 11 requires attention to detail and a systematic approach. By following the steps outlined in this article, you should be able to successfully install and update the driver, troubleshoot common issues, and resolve errors. If you continue to experience problems, you may want to consider seeking further assistance from Realtek support or a professional technician.