USB 3.0 Ethernet Dongle Not Working on macOS 10.11.4 – Fixes and Solutions

ethernetmacosusb

I have been using the StarTech USB 3.0 Gigabit Ethernet dongle which was working until I upgraded to the latest OSX Beta 10.11.4. Now it has stopped working–not even showing any indicator lights when plugged in.

I reinstalled the latest drivers on their site but still nothing. When I try to check kernel extensions with kextstat but didn't see the driver there. However, when I check extensions in the system profiler, and i see this

System Profiler -- Extensions

Does anyone know what I could do to make sure the driver is loaded so I can use the dongle? Thank you!

Best Answer

  1. In Terminal.app issue the command:

    sudo nvram boot-args="kext-dev-mode=1 rootless=0"

  2. Remove the NetworkInterfaces.plist file to regenerate a new one:

    /Library/Preferences/SystemConfiguration/NetworkInterfaces.plist

  3. Remove the device from System Preferences.app > Network

  4. Reboot your Mac
  5. Plug-in USB dongle
  6. Re-add device in the System Preferences.app > Network
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