I have a late 2013 MacBook Pro running El Capitan 10.11.6. Recently I bought a USB-to-Ethernet adapter so that I could connect to Ethernet. It was working fine, but now it's not after a few days.

Now, I don't see the Ethernet option under "Network Preferences", and I tried resetting my NVRAM (as I've seen on some other suggestions online) but that didn't work.

Any clue as to how I should proceed?

  • First step: diagnostics - determine if the adapter is functioning. Try it on a different machine or try a different adapter.
    – Allan
    Mar 9, 2018 at 14:32

1 Answer 1


As mentioned in the comment, try the adapter on a different machine to see if it's still functional.

Have you tried to add a new network device in the network settings pane? The USB adapter should show up there. enter image description here

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