This driver is proprietary but widely redistributed under “driver distribution rights” for hardware compatibility. No reverse engineering is permitted. Use only with legally owned hardware.

, and finding the right driver version is the key to fixing drops and slow speeds. Quick Specs for Version 5.1.22.0 (and similar 5.x series): Release Date: Generally circa 2015-2016. Supported OS: Windows XP, Vista, 7, 8, 8.1, and 10 (32 & 64-bit). Common Hardware IDs: USB\VID_148F&PID_7601 (MediaTek/Ralink). How to Install (Step-by-Step): Realtek USB Wireless Lan Utility Not Working

802.11n USB Wireless LAN Card Driver for System - DriverIdentifier

Version 51220 is not WHQL-signed for Windows 11. To install:

Even a full driver suite can encounter problems. Here are the most frequent errors and their fixes.

Microsoft (Native Wi-Fi Driver) or MediaTek/Ralink