Go to System Settings > Privacy & Security . Scroll down and click Allow to let the system load software from the third-party developer (Realtek/ASIX). Restart your Mac. Troubleshooting Common KY888 Network Issues 1. Device Shows a "Yellow Triangle" or Code 10/43 Error
The KY888 often utilizes one of two common chipsets, which determines the verified driver needed: ky888 usb ethernet driver verified