Have a specific error code? Search for "Realtek 8723DU Code XX Windows 11" and the solution from this guide will likely apply.
The Realtek 8723DU is a dual-band adapter – it supports 2.4 GHz only . If you need 5 GHz Wi-Fi or Wi-Fi 6 (802.11ax), consider upgrading to a newer adapter like the Realtek 8812BU or 8832AU. realtek 8723du wireless lan 80211n usb nic driver windows 11
The journey is not for the faint of heart. Microsoft’s security improvements have left legacy chipsets like the 8723DU in a gray area—functional but not officially supported. Have a specific error code