clifrun
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Q: imac mountain lion loses network when wakes for sleep

how to fix my imac that looses wifi or ethernet connection to network when waken from sleep. Can not restart it just freezes. Mountain Lion first osx i have han any trouble with. Genius bar cant fixt it? what to do?

 

Thanks!

iMac, OS X Mountain Lion (10.8.3), 4 gig ram i5 intel core 2.5 GHz

Posted on Apr 28, 2013 5:37 PM

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clifrun

Q: imac mountain lion loses network when wakes for sleep

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  • by BDAqua,

    BDAqua BDAqua Apr 28, 2013 6:52 PM in response to clifrun
    Level 10 (123,905 points)
    Apr 28, 2013 6:52 PM in response to clifrun

    Hi, this has worked for a few...

     

    Though all of these steps may or may not be needed, I'm including them all.

     

    Make a New Location, Using network locations in Mac OS X ...

     

    http://support.apple.com/kb/HT2712

     

    10.5, 10.6, 10.7 & 10.8…

     

    System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.

     

     

    10.5.x/10.6.x/10.7.x instructions...

     

    System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.

     

    The interface that connects to the Internet should be dragged to the top of the list.

     

    10.4 instructions...

     

    Is that Interface dragged to the top of Network>Show:>Network Port Configurations.

    If using Wifi/Airport...

     

    Instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.

     

    For 10.5/10.6/10.7/10.8, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...

     

    208.67.222.222

    208.67.220.220

     

    (There may be better or faster DNS numbers in your area, but these should be a good test).

    Click OK.