iMac ethernet not working, cable unplugged problem

Discussion in 'Mac Basics and Help' started by orionlogic, Jun 7, 2016.

  1. orionlogic macrumors newbie

    Joined:
    Nov 4, 2007
    #1
    Hi, for my iMac late 2013 i cannot use my ethernet port. It suddenly stopped working. Here are the things about my problem and things that i try:
    • Wifi is working
    • No, it is not the Apple ethernet brick problem i have 3.30.1 incompatible kernel extension
    • Ethernet cable is working, tried with a pc.
    • Did PRAM reset
    • Did SMC reset
    • Did open safe mode
    • Did delete ports and added manually
    • Also does not works on bootcamp windows
    • Did install new el capitan twice, including new beta
    • No psychical damage on port
    • I can see ethernet info on system information
    Here are the symptoms just before
    • Thunderstorm damage building tv set top box satellite also building elevators and cable modem for a short period of time
    • i connect samsung j5 via bluetooth and transfer file for the first time.

    tonight i will try with new ethernet cable and a clean install. If all those doesn't seem to work, i guess there is a hardware issue.

    Anything that i forget to do? Any other suggestions?
     
  2. glenthompson macrumors 68000

    glenthompson

    Joined:
    Apr 27, 2011
    Location:
    Virginia
    #2
    Try it on a different network so that any issues with your equipment is eliminated. If you can't connect to any Ethernet then it's your MBP.
     
  3. orionlogic thread starter macrumors newbie

    Joined:
    Nov 4, 2007
    #3
    Well it is an iMac, i might try bring it to another network and plug via ethernet. But the network is working with other PC's
     
  4. JohnDS macrumors 65816

    Joined:
    Oct 25, 2015
    #4
    What shows up in System Preference > Network for your ethernet connection? Can you post a screenshot?

    Does it show as connected? If so, click on the Advanced button, then the TCP/IP tab and post a screenshot.
     
  5. chscag macrumors 68000

    Joined:
    Feb 17, 2008
    Location:
    Fort Worth, Texas
    #5
    I have had this happen during a severe thunderstorm (quite common here in Texas) when a nearby lightning strike occurred. It not only took out the entire network but destroyed several TV sets and an air conditioner motor. I would guess that you're looking at a new logic board. Are you covered by Apple Care?
     
  6. JohnDS macrumors 65816

    Joined:
    Oct 25, 2015
    #6
    @chscag - I think you may be jumping the gun a bit there, but even if the ethernet port if fried, if that is all that is wrong, just getting a thunderbolt to ethernet adapter would be a much cheaper solution than replacing the logic board.
     
  7. orionlogic thread starter macrumors newbie

    Joined:
    Nov 4, 2007
    #7
    Well tonight i will try a clean install. The last resort before bring it to service.

    What i don't get is the wifi is working. So how can it damage that part of logicboard...
    --- Post Merged, Jun 8, 2016 ---
    ss.jpg
     
  8. chscag macrumors 68000

    Joined:
    Feb 17, 2008
    Location:
    Fort Worth, Texas
    #8
    Very true, but if his iMac is still covered by Apple Care, might as well have them replace the logic board. If not, then your suggestion is certainly a better alternative.
     
  9. Fishrrman macrumors G3

    Joined:
    Feb 20, 2009
    #9
    There are also USB-to-ethernet adapters available, for about $25 or so...
     
  10. JohnDS macrumors 65816

    Joined:
    Oct 25, 2015
  11. orionlogic thread starter macrumors newbie

    Joined:
    Nov 4, 2007
    #11
    Yes.

    Extra dongles does not look good for resell value. I can't sell an iMac with a defective port. I bring it to apple, waiting their reply. Its under Apple care.
     
  12. orionlogic thread starter macrumors newbie

    Joined:
    Nov 4, 2007
    #12
    FYI, service told me that mainboard have to be changed. It's covered by Apple Care.

    Interesting that these things still happen by Lightnings...
     

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