802.11n USB Wireless LAN Card driver version 5.1.22.0 is a specific software package released around April 2015 for Wi-Fi adapters using Ralink (now ) chipsets. Microsoft Learn Key Details of Version 5.1.22.0 Release Date: April 21, 2015. Primary Chipset Support: This version is most commonly associated with the Ralink RT7601 chips (Hardware IDs: USB\VID_148F&PID_7601 USB\VID_148F&PID_3070 Functionality:
It enables standard 802.11b/g/n wireless connectivity, typically limited to the 2.4GHz band Operating Systems:
While originally designed for Windows 7 and 8.1, it is frequently used on Windows 10 through Microsoft's Native Wi-Fi Driver framework. Common Issues & Troubleshooting
Despite its age, this driver is still a subject of discussion due to common compatibility hurdles: "Code 39" Errors:
Users on Windows 11 often report that the system cannot load this driver version, resulting in a Code 39 (corrupted or missing) No 5GHz Support:
Some users mistakenly expect 5GHz performance from these adapters; however, version 5.1.22.0 usually only supports the 2.4GHz radio. Network Settings Crash:
In rare cases on older Windows 10 builds, corrupted installations of this driver have been linked to the OS "Network Settings" menu failing to open. Microsoft Learn How to Update or Reinstall
If you are experiencing issues with version 5.1.22.0, several alternatives exist: Official Sources: Since MediaTek acquired Ralink, you should check the MediaTek Legacy Product page for the most stable business partner drivers. Third-Party Repositories: Newer versions like 80211n usb wireless lan card driver version 51220
(released up to 2021) are available on specialized driver sites like Station-Drivers and may offer better stability on Windows 11. Manual Update: Right-click the device in Device Manager
, select "Update Driver," and choose "Search automatically" to see if Windows Update has a newer WHQL-signed version. download link for a specific operating system, or are you trying to fix a connection error with this driver? 802.11n usb lan card driver problem. - Microsoft Q&A
The 802.11n USB Wireless LAN Card driver version 5.1.22.0 is a crucial software component primarily designed for wireless adapters utilizing MediaTek (formerly Ralink Technology Corp) chipsets. This specific version, released around April 21, 2015, provides the necessary interface for older hardware to communicate with modern operating systems like Windows 10 and 11. Key Specifications Manufacturer: MediaTek / Ralink. Driver Version: 5.1.22.0. Release Date: April 21, 2015.
Supported Standard: 802.11n (Wi-Fi 4), supporting speeds up to 300–950Mbps depending on the hardware.
Compatibility: Windows XP, Vista, 7, 8, 8.1, and Windows 10. Why You Need This Specific Driver
A generic driver may allow Windows to recognize your USB adapter, but version 5.1.22.0 is often required to unlock all hardware features. Updating to this version can:
Resolve Connectivity Issues: Fix frequent disconnects or "No Internet" errors. Version number format (5xxxx) is commonly seen in
Improve Stability: Ensure a steady connection during long-term usage.
Fix Compatibility: Allow older Ralink-based dongles to work correctly on Windows 10/11. Installation Guide You can install this driver using several methods:
The driver version 5.1.22.0 (released around April 2015) is a standard release for various 802.11n USB Wireless LAN Cards, primarily those utilizing Ralink (MediaTek) chipsets such as the RT3070 or RT7601. Driver Details Version: 5.1.22.0 Release Date: 2015-04-21 Provider: Microsoft (Native Wi-Fi Driver)
Supported OS: Windows 7, 8, 8.1, and Windows 10 (32-bit & 64-bit)
Hardware IDs: Commonly associated with USB\VID_148F&PID_3070 or USB\VID_148F&PID_7601 How to Install or Update
If your 802.11n adapter is not working correctly with this version, you can manually update it through Windows:
Open Device Manager: Right-click the Start button and select Device Manager. look for a different driver.
Locate Adapter: Expand the Network adapters section and find your 802.11n USB Wireless LAN Card. Update Driver: Right-click the device and select Update driver.
Choose Search automatically for drivers to let Windows find the best match.
Alternatively, if you have the driver file, select Browse my computer for driver software and point it to the folder containing the .inf file.
Restart: Once the installation is complete, restart your computer to ensure the changes take effect. Common Sources for Downloads
A: No. Driver 51220 is specifically for 802.11n adapters. Using it on an AC adapter will cause hardware failure to initialize (Code 28). Look for AC-specific drivers like version 1030.38.
Not every 802.11n USB adapter uses this driver. Based on INF file analysis and hardware ID databases, version 51220 is compatible with the following Realtek chipsets:
| Chipset | Max Link Speed | Common Adapter Models | |----------------|----------------|------------------------------------------------| | RTL8188CUS | 150 Mbps | EDUP EP-N8508, Panda Wireless PAU05, generic black dongles | | RTL8188CTV | 150 Mbps | TP-Link TL-WN722N (v1), Linksys WUSB100 v2 | | RTL8188EUS | 150 Mbps | Cudy WU700, BrosTrend AC1L (in 802.11n mode) | | RTL8192CU | 300 Mbps | Alfa AWUS036NHR, TP-Link TL-WN822N v3 | | RTL8192EU | 300 Mbps | Edimax EW-7811Un (some variants), Comfast CF-912AC | | RTL8723BU | 150 Mbps + BT | Combo Bluetooth/Wi-Fi adapters (e.g., CSR8510) |
Important: Driver 51220 is not for 802.11ac (Wi-Fi 5) or 802.11ax (Wi-Fi 6) adapters. If your device ID includes “8812” or “8822”, look for a different driver.