"Another device on the network..." Warning Message

Discussion in 'OS X Mountain Lion (10.8)' started by Pixelmage, Oct 26, 2012.

  1. Pixelmage macrumors member

    Aug 22, 2008
    I have be getting a pop-up dialog box saying "Another device on the network is using your computer’s IP address."

    I have checked my router's control panel and only see the IP addresses for my computer and the laser printer.

    I have restarted my router and even change the router's IP address as well as the address range. What is going on here and how can I fix it?

    BTW - Originally, I manually defined the IP addresses in both devices. However, now I noticed on my iMac that I cannot not specify a different IP address in the System Preferences/Network Panel. Why is that?
  2. Weaselboy Moderator


    Staff Member

    Jan 23, 2005
    It sounds like the manual IP address you picked is in use. Can you just put the OS X IP back to DHCP and see if that helps?

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