Wi-fi off and will not turn on - MacBook

I wrote too soon ... Shut down the bitbox to attend to a few honey-do projects and when I powered back up the wi-fi was off again. Elise's procedure brought it back online (great relief).

A trip to a fix-it shop is on my short list for the first of the week to check configuration and (probably) install a new wireless gizmo. I don't want to push my luck.

Thanks to Tricia for posting the question originally, to Bob for his hardware answer and to Elise for a great temporary work-around.

-alex

I had exactly the same problem as Tricia and used Elise's suggestion which worked beautifully. Thanks Elise.

Pete

I have had this problem ever sence I upgraded to Lion. If I turned the comupter off and restated my Wifi would not turn on. A simple restart would fix the problem till yesterday. I restarted over and over with no luck. Found this post and the fix here got my Wifi back. I have yet to restart to see if it does it again.

Another friend suggested that if I'm tired of having to apply the workaround every time I power up, just put the MacBook in sleep mode and it might stay connected ... I did that and sure enough it worked.

My techie at the local Apple store (not a company store, an authorized seller) had several machines on his bench with the same ailment ... he already concluded it was a software problem and has been in touch with Apple about it ... Apple may have a fix pretty soon.

Thank you so much!!! This worked like a charm!

Thank you for the great advice. Your directions worked like a charm!

Robert

Mine Wifi quit and needed to do the tip here when I got the new Itunes update.

Follow the directions from AtlantaElise on the first past of this posting. It worked for me

I had this exact problem with my mother in law's Late 2008 MacBook Pro and I followed the process outlined by AtlantaElise which worked perfectly. Back online with WiFi within minutes. Thank you so much!

Same here, this worked for me. Smells like corrupted settings. I do hope that Apple fix it in 10.8.6

F

I'm having the same problem since the last update 10.8.5! I did what I asked her Elise and it worked, but whenever I restart or turn off my Macbook in 2008 he returns with this problem and I have to repeat the procedure ...

Very disappointed with this ...

Well I'm happy that it's not a hardware issue. But Apple need to fix this ASAP.

I too was having this problem with one of our computers (late 2008 macbook pro) and was applying AtlantaElise's workaround. It seems like the recent OS update (OS X 10.8.5 12F45) may have fixed the problem. It has been stable through several resarts at least....

WOW Elise,

You are a true apple genius. After struggling to figure out what was wrong with my wi-fi for the last week, I have successfully used your method to restore my internt connection. I applaud you and your advice! This worked first time and I am up and running. Thanks again

JHyatt89

Thanks a lot to AtlantaElise, perfect fix for the issue.