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I have had this iMac for a couple of years, and I have had constant issues with the wifi periodically disconnecting (only recently cared because I have actually started using it). I have recently upgraded to OS X Mountain Lion and that hasn't seemed to solve the issue. My Linux and Windows Machines that are right next to the iMac have never had any issues with wifi dropping out. What could be the problem here? I honestly do not like macs so I have never spent any time on them and therefore don't know much about how they work, so please keep that in mind when answering.

I have attempted to search it, and it does seem to be quite allot of issues with this, but no answers (at least not in the first 20 pages of most forums).

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I had some problems with WiFi on my MacBook (Lion) (mine didn't even recognized the network) and did a lot of research on it. There are a couple of typical things suggested for solving issues like this. I did almost all of them and somehow the problem was solved, but I'm not sure which one worked! So, I just list them. Check either one of them and see if the issue is solved or not.

  1. Go to System Preferences -> Network: remove the WiFi interface from the left list and then add a new one.
  2. System Preferences -> Network: Create a new location (at the top) and use it for connecting. For some, this has solved the dropping problem.
  3. Go to Network -> Advanced -> TCP/IP and click Renew DHCP Lease.
  4. If neither of the above worked, this solution may solve it: Resolving Stubborn Wi-Fi Connection Problems in Mac OS X. (Also, check the comments on the above site. Some have suggested other solutions.)

So, these were the things I can think of that may help solving the problem.

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