Mac Pro does not recognize the Ethernet ports

After a reboot for my end of 2013 Mac Pro OS x 10.11.3, the two Ethernet ports are most recognized. Suffice to say not 'connected' is one of them.

I have:

  • rebooted a couple of times
  • Reset the PRAM
  • the power disconnected for several minutes left
  • tried two different terminals
  • tried two different Ethernet cables
  • tried the two Ethernet ports

The light of the end device will blink.

WiFi works fine.

What should I do before I decide that there is a hardware problem?

Bob

There was a recent post about the same problem and found a solution. Give it a try: Re-built-in ethernet disappeared.

Tags: Mac

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