josephfrombrookfield

Q: iMac used to connect to internet now assigns 169.254... ip

My wireless connection from my iMac to my AT&T router was working fine.  Recently my 27" iMac (using Snow Leopard 10.6.8) cannot connect to the internet.  The IP automatically getting assigned (using DHCP) is 169.254.21.210.  The AT&T router is also connected to a Windows 7 PC and that is connecting to the internet without an issue. The IP that should be getting asigned is:  192.168.....   I am typing this "issue" using my daughters Mac Book Pro which is next to the iMac that has the connection issue.  Obviously the Mac Book Pro is working fine. Shouldn't be a location issue.  Also have used 2 other Mac Book Pros successfully as well as a Windows laptop from work.  All work fine.  Just the iMac is not working.  Have setup the network connection again to no avail.  I have used the Network "Assist me" option with no success.  I also connected an Airport Extreme Base Station to the AT&T router with hopes of connecting.  The iMac sees the Base Station (and also the AT&T router) but fails to connect to my ISP. 

Does anone have some experience in this area?  Why is the Mac assigning a 169.254... ip address? I have looked at many discussion forums on Apples site with hopes of finding an answer but nothing has helped.

iMac (27-inch Mid 2010), Mac OS X (10.6.8)

Posted on Mar 17, 2012 5:00 PM

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