Solution: Windows 11 versions 24H2 and 25H2 enforce WHQL signature checking strictly. You must use a driver signed after 2023. Older drivers (2015-2020) will fail. Download the latest 2025/2026 driver bundle from the official CoreChip repository.
This is the most common solution for Windows 11 users. You will need to download the driver package (often labeled for Windows 10/8/7) and manually point Windows 11 to it. corechip semiconductor usb to ethernet driver windows 11 top
Step A: Download the Driver Since Corechip does not have a consumer-facing website with a direct download portal, you usually have to rely on the disk provided with the adapter or a trusted repository. Search online for "Corechip RD9700 Driver Windows 10" (Windows 10 drivers work perfectly on Windows 11). The file is typically a ZIP file around 5MB to 10MB. Solution: Windows 11 versions 24H2 and 25H2 enforce
Step B: The Installation Process
Even after installation, things can go wrong. Here are the "Top" issues reported by users and how to fix them. This is a power management bug in Windows 11
Before installing random drivers, confirm that your device actually uses the Corechip chipset.
This is a power management bug in Windows 11.