Windows 11 has much stricter driver security policies than Windows 10 or 7. The generic drivers that shipped with the QTS1081B are often unsigned or use an old signature algorithm (SHA-1 vs. SHA-2). Consequently, Windows 11 blocks them automatically, leaving you with the cryptic "i---" entry.
If the ASIX driver refuses to install (error code 10 or 52), you can use a community-maintained wrapper: the NDIS 6.0 shim for MCS7830 chips. i--- Driver Usb To Lan Qts1081b Windows 11
Steps:
This method works but yields only 10/100 Mbps speeds (no gigabit). Suitable for legacy printers, IP cameras, or IoT devices—not gaming or large file transfers. Windows 11 has much stricter driver security policies
After installation:
The QTS1081B is an ultra-compact USB 2.0 to RJ45 Ethernet adapter. It is widely sold on Amazon, eBay, and AliExpress under generic brand names. Key specs include: If the ASIX driver refuses to install (error