bcors2
Level 1 (0 points)

Q: iMac fails to reconnect to the internet after it resumes from sleep mode

I just received this computer and it randomly fails to reconnect to wi-fi after it resumes from sleep mode. Could this be cause by too many connections to my router? I'm currently running this mac, 2 PC's and 2 smartphones on a Linksys WRT54g router

iMac, OS X Mountain Lion (10.8.2)

Posted on Dec 28, 2012 7:20 PM

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bcors2

Q: iMac fails to reconnect to the internet after it resumes from sleep mode

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  • Helpful answers

  • by BDAqua,Helpful

    BDAqua BDAqua Dec 28, 2012 11:15 PM in response to bcors2
    Level 10 (123,905 points)
    Dec 28, 2012 11:15 PM in response to bcors2

    Hi, this has worked for a few...

     

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

     

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

     

    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

     

    Click OK.

  • by WZZZ,

    WZZZ WZZZ Dec 29, 2012 5:37 AM in response to bcors2
    Level 6 (13,112 points)
    Mac OS X
    Dec 29, 2012 5:37 AM in response to bcors2

    Sometimes this happens for me. When it does I give Airport a second chance to find the signal it must have missed on the first try on wake from sleep. From the Airport icon in the menubar, just select "Turn Airport Off" wait a second or two and then turn it back on again. Never fails for me.

  • by BDAqua,

    BDAqua BDAqua Dec 29, 2012 10:27 AM in response to WZZZ
    Level 10 (123,905 points)
    Dec 29, 2012 10:27 AM in response to WZZZ

    Did you ever try the New Location? Easy to switch back if need be.

  • by ricksca,

    ricksca ricksca May 24, 2013 12:12 AM in response to bcors2
    Level 1 (0 points)
    May 24, 2013 12:12 AM in response to bcors2

    I had this problem on both my Macbook Pro's. I tried all sorts of fixes and none of them worked. Sometimes it would take 5 minutes to reconnect to the Internet after being asleep. This went on for YEARS. Last month, I switched from ATT Broadband to Comcast. Problem GONE. That alone would have made the switch worth it. The extra 25 mbps I got is just icing. (Oh, and half the cost).