Previous 1 2 3 Next 67 Replies Latest reply: Oct 3, 2015 4:11 AM by oddBeat
strudders Level 1 (0 points)
My wired internet has stopped working - internet connect says the ethernet cable is unplugged (it isn't). I have tried a different cable and a different port on the router. Rebooted router and macbook. Reset the pram and system management unit. Ran hardware test and it shows no problems. What else can I try?

macbook pro, Mac OS X (10.5.4), 2.6Ghz Intel Core 2 Duo 2Gb ram
  • rvaro Level 3 (860 points)
    if you have tried all of the above then i think the best bet would be to take it into the apple store...
  • Aakash.Patel Level 1 (0 points)
    Ya, I think taking it to the Apple Store is your best shot.
  • TXMusic Level 1 (0 points)
    I am having the same problem on a one year old macbook pro. It started Monday. If this is a hardware problem, I am pretty ticked! It just went over the one year warranty!
  • R. Berardi Level 4 (2,020 points)
    try opening system preferences > network
    in the left hand column, click on your Ethernet
    at the bottom, click on the - sign to remove it. (you may have to click the lock to make changes)
    now click on the + sign to add your Ethernet back
  • okeefferd Level 1 (0 points)
    I have the same problem with an original macbook (Core Duo 1.83 GHz). Anyone else have any other suggestions...
  • atraudes Level 1 (0 points)
    I just ran into the same problem. I was able to resolve it by changing my location at the top of the window to automatic. I had tried to install a Verizon dial-up service using my cell phone a while back, and it still had the NationalAccess option selected. Double check that, just to make sure, otherwise it looks as though your ethernet card may be bad. Unfortunately, those sort of things just happen sometimes.
  • gentle_pro Level 1 (0 points)
    I got the same thing, mine one Macbook pro 2.53G/4Gram/350GHd, just bought it after two weeks, the ethernet port didn't work, it said "the ethernet cable unplugged", the Apple people exchanged me a new one, but after three weeks, the same thing happened to the new one again.
    I think that there must be something wrong with this new model!!!
  • jarigo_ Level 1 (0 points)
    This happened to me today as well. All of a sudden ethernet was dead. I tried all the tricks in the book, PRAM, Safe boot, deleting all prefs there are connected to network settings, un-installed Vmware, checked the pins, tried 9 different cables and locations, manual DHCP settings, All manual settings, removed Ethernet and created a new in network prefs, checked all of today's log files, all in vain. My good, this computer is no more then 10 days old. I'm in the middle of the planet's largest annual climate change meeting.... Any suggestions, apart from those things I've already tried here?
  • devstorm Level 1 (0 points)
    4 weeks into my new MacBook Pro and I've also run into this ethernet problem. About to try the suggestions in this thread, hoping for a positive outcome.
  • devstorm Level 1 (0 points)
    Ended up getting nowhere and had to take it to the Apple store where they swapped it out with a new MBP, transferred data, etc. They said it's basically a bad logic board, so the only solution is to exchange the entire machine so they're not replacing a $1200 part in a weeks-old computer. The exchange was hassle-free and handled very well.
  • jschmitt3 Level 1 (0 points)
    Another victim here; new macbook pro (late 2008) and the ethernet port has gone dead again! I had it into the Apple store once and they replaced the logic board about 2 weeks ago. Unfortunately, this problem reared itself again and now I'm hoping Apple will simply send me home with a new machine.

    The only thing that makes sense to me is if these controllers are in some way susceptible to surges from an ethernet cable. The interesting thing is that I had an older MacBook Pro connected to this same port for almost 2 years without any previous issues on the older hardware.
  • jschmitt3 Level 1 (0 points)
    Extremely disappointing experience @ the Apple Store today; although they will order yet another logic board to fix the Ethernet port, they were unwilling to exchange it for a new machine on account of the fact that I had upgraded the original hard drive and memory with parts from OWC. They told me that if I had the original parts in the machine, they would have given me a new machine right away. This effectively means that no one should upgrade their Macs and expect Apple to honor their normally excellent customer service track record. I asked the Genius what I should do if the next logic board blows out. His response, was that they would continue replacing boards until the problem stopped.

  • VM68 Level 1 (0 points)
    I purchased my MBpro at the end of Nov 08. I just got mine back from the Apple Store for the second time. Apple replaced the logic board the first time. They may done it again the second time too. Surprised they wouldn't give me a new machine, but I never asked. Next time, I'll ask. If the port goes out again, not sure what to do. There doesn't appear to be a solution yet.
  • Druid153 Level 1 (0 points)
    Mine aswell. Am waiting for them to recieve a logicboard. Meanwhile no ethernet for me. I must say being a new mac user I am truly disappointed with the hardware quality. New motherboard after 2 months??? Could have had a dell with less problems in 4 years.
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