A Code 10 error means Windows cannot communicate with the USB dongle, often due to an outdated or corrupted driver registry entry.

Avoid using unpowered USB hubs; plug the dongle directly into the motherboard. 3. Slow Network Speeds

After a Windows 10 feature update, the RTL8188CU may suddenly suffer from frequent disconnects or a maximum link speed of only 2 Mbps.

Download: – look for version 1030.40.1201.2019 or newer. (If the direct link is down, use their main download search: https://www.realtek.com/en/downloads and search “8188CU”)

can be challenging because Realtek often groups older chipsets into legacy download packages Microsoft Update Catalog