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

M

MacDenney

macrumors newbie
Original poster
Mar 21, 2009
6
0
30 miles east of Sacramento, CA
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
 
celticpride678

celticpride678

Guest
Feb 15, 2009
5,486
2
Boston, MA
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.
 
bobr1952

bobr1952

macrumors 68020
Jan 21, 2008
2,040
39
Melbourne, FL
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.
 
H

HacKage

macrumors 6502
May 14, 2010
499
906
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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