intenet/network connection

Discussion in 'iMac' started by jassink, Sep 21, 2011.

  1. jassink macrumors newbie

    Sep 21, 2011
    Trying to help a friend resolve a problem. When not connected via ethernet he can get to the internet using wifi. As soon as he plugs into the network no internet - wifi or via the network, but he can access everything on the network.

    New to MAC's any suggestions?
  2. Detrius macrumors 68000

    Sep 10, 2008
    Asheville, NC
    There are a few possible reasons for this that come to mind:

    - DNS settings may be wrong. Remove any manually configured DHCP server addresses and let DHCP supply them.
    - Ethernet may have manual IP that matches the subnet but is otherwise wrong. Set it to DHCP.
    - Lion Server (not client) may have a bug where the gateway address is static for the primary network interface, even if that interface is set to DHCP. I've not delved into this issue enough to find a proper solution. I installed Lion Server on my own laptop and have run into this issue. I've so far only been able to fix the issue temporarily at the command line by manually modifying the routing tables (netstat and route).

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