Question
Since installing a new router I have to manually select each time I switch on or after mac has been on snooze can you help? (My iPad hooks up fine so must be OS Lion). Please help.
iMac (21.5-inch Mid 2011), Mac OS X (10.7.5)
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Best reply
Have a look at JAHelms suggestion in this thread which seemed to help quite a few with the same/similar problem:
https://discussions.apple.com/thread/4342982?tstart=0
If that doesn't help, here are some suggestions that have helped some Lion and Mountain Lion users:
Wifi problems seem to crop up a lot on here and unfortunately there doesn't seem to be a 'one fix' solution.
However, sometimes any one of the following can help although, unfortunately, not always. In no particular order:
Check wifi security - if it's WEP change it to WPA or WPA2 (preferably, as it's more secure)
Change the wifi channel on the router
Create a new Network Location: http://support.apple.com/kb/HT5289
Reboot the router
Also take a look at this link and the links within the article for other ideas. They mainly reference Lion, but still seem to be relevant to Mountain Lion:
...and this link:
http://osxdaily.com/2012/11/30/resolving-stubborn-wi-fi-connection-problems-in-m ac-os-x/