ilovecode
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Q: 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

by ilovecode,Solvedanswer
ilovecode ilovecode
Level 1 (0 points)
A:

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.

Posted on Jul 28, 2012 1:22 AM

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Q: Mountain Lion no Wifi after wake from sleep

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  • by ilovecode,Solvedanswer

    ilovecode ilovecode Jul 28, 2012 1:22 AM in response to ilovecode
    Level 1 (0 points)
    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.

  • by durgani,

    durgani durgani Jul 28, 2012 6:45 AM in response to ilovecode
    Level 1 (0 points)
    Jul 28, 2012 6:45 AM in response to ilovecode

    Hi, has you wifi connectivity been stable (between sleeps) since you last posted your fix?

  • by dzatona,

    dzatona dzatona Jul 29, 2012 3:21 AM in response to durgani
    Level 1 (0 points)
    Jul 29, 2012 3:21 AM in response to durgani

    Hi there,

     

    I've tried this fix — nothing happened. Still having this issue =(

    Connection is NOT stable =(

  • by primalman,

    primalman primalman Jul 29, 2012 6:07 AM in response to ilovecode
    Level 1 (5 points)
    Jul 29, 2012 6:07 AM in response to ilovecode

    I have tried this top. Still network freezes after wake from sleep on mid-2009 MBP.  Not good. Going to go back to Lion I think.

  • by David Parmet,

    David Parmet David Parmet Jul 29, 2012 8:21 AM in response to ilovecode
    Level 1 (25 points)
    Jul 29, 2012 8:21 AM in response to ilovecode

    worked for me!  thanks!!!!!

  • by dzatona,

    dzatona dzatona Jul 29, 2012 9:07 AM in response to ilovecode
    Level 1 (0 points)
    Jul 29, 2012 9:07 AM in response to ilovecode

    It seems to be (imho) that this problem is caused by the new background update system that was first introduced in 10.8 version. I am inclined to think so because after a «short» sleep system works perfectly, but after a «long» sleep wi-fi freezes, becoming a beachball =(

  • by primalman,

    primalman primalman Jul 29, 2012 10:58 AM in response to ilovecode
    Level 1 (5 points)
    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!

  • by primalman,

    primalman primalman Jul 29, 2012 11:32 AM in response to primalman
    Level 1 (5 points)
    Jul 29, 2012 11:32 AM in response to primalman

    Never mind. New test with a much longer sleep has the freeze.

     

    What could this be?

  • by primalman,

    primalman primalman Jul 29, 2012 11:40 AM in response to ilovecode
    Level 1 (5 points)
    Jul 29, 2012 11:40 AM in response to ilovecode

    Another odd thing that is associated with the wifi freeze is that when this happens, I cannot launch any apps. Tis lasts wifi freeze became a system wide thing when activity monitor, the force quit window and the finder all beachballed and I could not launch apps at all. Only a hold the power button shutdown worked.

     

    This is super annoying.

  • by dzatona,

    dzatona dzatona Jul 29, 2012 12:07 PM in response to primalman
    Level 1 (0 points)
    Jul 29, 2012 12:07 PM in response to primalman

    primalman, yep, this is quite similar to what I have, short sleep is OK, long one — we've got a freeze( no idea how to fix it(

  • by Dr_David,

    Dr_David Dr_David Jul 29, 2012 2:03 PM in response to ilovecode
    Level 1 (10 points)
    Jul 29, 2012 2:03 PM in response to ilovecode

    I posted about something similar here:  https://discussions.apple.com/thread/4141159?tstart=0

     

    But, rebuilding the wifi in network settings didn't solve it for me.

  • by primalman,

    primalman primalman Jul 29, 2012 2:22 PM in response to ilovecode
    Level 1 (5 points)
    Jul 29, 2012 2:22 PM in response to ilovecode

    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.

  • by RevChris,

    RevChris RevChris Jul 29, 2012 3:23 PM in response to ilovecode
    Level 1 (0 points)
    Jul 29, 2012 3:23 PM in response to ilovecode

    Same problem here - glad I'm not alone - maybe Apple will send a fix.  I followed the proposed solution, so we'll see if that does anything.  But after seeing the replies on this thread, I'm not hopeful.

  • by dzatona,

    dzatona dzatona Jul 29, 2012 3:25 PM in response to RevChris
    Level 1 (0 points)
    Jul 29, 2012 3:25 PM in response to RevChris

    Most likely that this fix will not affect deep sleep problem. Still monitoring my own laptop and refreshing the feed in hope to see the solution... Will see tomorrow, because I don't know what time exactly needed for mb pro to go to deep sleep instead of short one.

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