"another device is connected to your network with same IP address"

Discussion in 'iMac' started by MacDenney, Feb 26, 2011.

  1. MacDenney macrumors newbie

    Joined:
    Mar 21, 2009
    Location:
    30 miles east of Sacramento, CA
    #1
    Upon awakening my year old iMac, I get a dialogue box that says that there is another device with the same IP address on my network. I click "OK" and the box disappears with no apparent issues, except that it's annoying.

    I have the iMac, Macbook laptop, an iPHone 4, and an iPad connected to a Airport Extreme wireless network. The iPhone 4, and iPad have been connected within the last 2 months.

    Any help, or explanation etc. would be greatly appreciated
     
  2. celticpride678

    Joined:
    Feb 15, 2009
    Location:
    Boston, MA
    #2
    When you sleep your iMac, it disconnects from your Wi-Fi network. Then, one of your other devices (likely the iPhone or iPad) is taking the IP address that your iMac just gave up and using it.

    Make sure you have a dynamic IP setup in System Preferences.
     
  3. MacDenney thread starter macrumors newbie

    Joined:
    Mar 21, 2009
    Location:
    30 miles east of Sacramento, CA
    #3
    dynamic IP setup in System Preferences.

    How do I create a dynamic IP setup in System Preferences?
     
  4. bobr1952 macrumors 68020

    bobr1952

    Joined:
    Jan 21, 2008
    Location:
    Melbourne, FL
    #4
    Have you checked to see if your Mac resolved the problem on its own? I have had that happen but once it got a new address from my Time Capsule, it was happy once again.
     
  5. HacKage macrumors regular

    Joined:
    May 14, 2010
    #5
    I get this when my iMac goes to sleep using Airport only. Normally I just use ethernet but when I use Airport I usually get these message but I click ok and it seems to sort itself out, I don't need to muck about with it or anything. Unless you have programs specifically using that ip address, I wouldn't worry about it.
     

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