, which may be insufficient for high-speed fiber internet connections. identifying the Hardware ID
Windows 11 updates may occasionally overwrite your working manual driver with a non-functional generic USB driver. , which may be insufficient for high-speed fiber
Select the appropriate .inf file (often named kyasb.inf or similar depending on the exact driver version) and click , then OK . | Source | Link / Path | Notes
| Source | Link / Path | Notes | |--------|-------------|-------| | (Acquired RD9700 IP) | https://www.realtek.com → Search "RD9700" → Download RD9700_USB_LAN_Driver_vX.X.X.zip | Most reliable, digitally signed | | Microsoft Update Catalog | https://www.catalog.update.microsoft.com → Search RD9700 | Signed CAB files for Windows 10/11 | | OEM support (rare) | Check adapter packaging / CD-ROM | Often outdated | If your download contains this file:
Windows detects the device but labels it with a yellow exclamation mark in Device Manager, stating "Device cannot start (Code 10)" or "Drivers for this device are not installed."
that often covers broad USB-to-Ethernet chipsets. This is the most reliable current source for official Windows 11 installers. You can find it on the Realtek Download List DriverMax (Corechip RD9700) : This site hosts version
Some driver packages include a Setup.exe installer. If your download contains this file: