Trying to connect two macs to internet via wireless router, only one can connect

Discussion in 'Mac Basics and Help' started by smallbeans, Jan 3, 2009.

  1. smallbeans macrumors newbie

    Sep 14, 2008

    I'm trying to connect two macs (an iMac and a MacBook) to the internet via wireless router(Buffalo), but only one can connect at a time. If I turn the airport of one off, the other can connect and vice versa, but not both at the same time. There is a PC connected to the router via ethernet, but that's all.

    Any help would be appreciated.
  2. Chandler Adaway macrumors 6502a

    Chandler Adaway

    Jun 29, 2008
    Beaumont, TX
    I've NEVER heard of those routers.

    Maybe it's just a crappy router. Ha.
  3. eman macrumors 6502a

    Nov 5, 2007
    In the great white north
    Use an ethernet cable and connect your macbook to the router. Boot into your router and check the settings on the Buffalo router. Make sure your router is enabled for more than one wireless connection. Did you buy this wireless router used?
  4. snberk103 macrumors 603

    Oct 22, 2007
    An Island in the Salish Sea
    Not an expert here, so I don't know if it will work - but it won't hurt, and I use this to sometimes fix a flaky connection.

    Turn on both Macs. For the one that won't connect....
    Go to Network settings in Preferences.
    Make sure "Airport" is selected in the list on the left.
    Click on the "Advanced" button.
    Click on the "TCP/IP" button along the top.
    Click on "Renew DHCP Lease" button.

    Go get a tea or coffee, and give the systems time to sort things out.

    If that doesn't work, turn the power off on the router, and the broadband modem. Restart the computers. The power back on for the router. Wait a minute. Turn the power back on for the modem. (essentially you are re-setting the network from the far ends towards the internet source. Go get a tea or coffee.

    If that doesn't work, then I'm stumped.

    Good Luck.
  5. wiseguy27 macrumors 6502


    Apr 30, 2005
    Maybe the default limit for DHCP addresses in your router is very less? You may have to visit (or the address mentioned in the router's manual), login as the administrator and change the settings. Be careful and follow the user manual if you don't know how to configure a wireless router.

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