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Mountain Lion no Wifi after wake from sleep

Hey guys,


I have the following problem:


after I wake my 17" MacBook Pro 8,3 (early 2011) from sleep by opening the lid, it starts searching for a WiFi network to join. It will just keep searching and searching, without ever finding anything. When I try to click on the WiFi icon in the menubar I get the beachball, also the System Preferences are affected by this crash - I can't go to "Network", it also beachballs. The only way out is a restart.


To prevent this from happening I can disable WiFi before putting my mac to sleep, but that's quite inconvenient. I have disabled all Auto Proxies, tried to delete the known networks from both the Network pane and the Keychain.


😟

MacBook Pro (17-inch Early 2011), OS X Mountain Lion

Posted on Jul 27, 2012 11:06 PM

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Posted on Jul 28, 2012 1:22 AM

Ok, I finally fixed this myself.


Go to "System Preferences > Network" and select the WiFi-Service from the list on the left. Select "Options" from the bottom right of the right pane. In this window, delete all the known Networks and hit OK. Then go ahead and delete the WiFi device. Create a new WiFi device and you're done.

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Question marked as Best reply

Jul 28, 2012 1:22 AM in response to ilovecode

Ok, I finally fixed this myself.


Go to "System Preferences > Network" and select the WiFi-Service from the list on the left. Select "Options" from the bottom right of the right pane. In this window, delete all the known Networks and hit OK. Then go ahead and delete the WiFi device. Create a new WiFi device and you're done.

Jul 29, 2012 10:58 AM in response to ilovecode

I have an addition.


Check to see if you have an older pre-version 7 version of parallels installed. I checked another suggestion which was to delete to network preferences in the library folder. When reviewing those files I noticed that the parallels network interfaces were listed. On a hunch I upgraded to parallels 7 which I already purchased which parallels says is now mountain lion compatible, the only version that is certified. After a few sleep-then-wake tests on my MBP it looks to have fixed the issue. I'll report back if this changes back to the previous behavior and which Wi-Fi and the networking preference pane would freeze.


Fingers crossed!

Jul 29, 2012 3:56 PM in response to primalman

primalman wrote:


I am reinstalling ML now, just to see. But, after a bit kore researching, has anyone tried to change the ipv6 setting to local only? Things imam seeing seen to suggest that there might be issues with this. As soon as I am back up I am going to run my usual wifi freeze tests, then change my ipv6 settings.


I'm game. Just set it now and will get back to you to see if it solves my issue. This has been annoying me since Lion and the only fix I've been able to come up with so far is to turn wi-fi off for 10 seconds and then turn it back on.

Mountain Lion no Wifi after wake from sleep

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