Self-assigned IP on airport and ethernet

Discussion in 'Mac Basics and Help' started by jag00, Sep 20, 2008.

  1. jag00 macrumors newbie

    Joined:
    Dec 21, 2007
    Location:
    New York
    #1
    I've searched the forums and found different variations of this issue but none exactly as mine. After trying many of the suggestions in other posts, I thought I'd post and hope someone has some ideas.

    I have a MBP (2.2 ghz, C2D, 4gb ram) running leopard with all the latest software updates. When I connect at home, to a linksys router with WPA2 encryption, my connection works perfectly. However, in the last month or so, everytime I take my computer anywhere else, I can't connect. I can't connect wirelessly or via to my work network. I would say that's a problem of the network but other computers work fine. I have tried other public wifi networks and I can't connect either. The message is always that airport can't grab an IP so I get the "self-assigned IP" status. I just tried connecting through Ethernet to a friend's cable modem and the same message appeared. Overall I've tried about 10-15 networks and none work. The kicker is when I boot under bootcamp into windows XP I can connect wirelessly to any public network.

    I have tried reparing permissions, deleting preference files, deleting all my preferences under network connections. Nothing has worked. Anyone care to take a shot at it? I guess my last shot is to reinstall OS X but I don't feel like wiping out everything on my computer.

    Thanks for any help and sorry for the long post.

    -J
     
  2. brand macrumors 601

    brand

    Joined:
    Oct 3, 2006
    Location:
    127.0.0.1
    #2
    Are you using DHCP to obtain an IP on your laptop? You could also turn off IPv6 since you will never need it.
     
  3. jag00 thread starter macrumors newbie

    Joined:
    Dec 21, 2007
    Location:
    New York
    #3
    Yes,I'm using DHCP. Thanks for the suggestion. I have tried turning off IPv6 but no difference.

    -J
     

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