Hey guys, I've found a way to fix the problems with WiFi connections dropping/forgetting networks etc.
its actually a pretty simple fix.
My early 2011 MBP 13" decided that i didnt need WiFi anymore, so i've been stressing up until about 5 minutes ago.
i thought to myself, "I dont care if its to siple to work, its worth a shot"
so i went to this page...
and downloaded and installed the 10.7.2 update again.
this time i made sure i had my power cable plugged in and all apps closed, just for good measure.
Sure enough when my notebook had performed the restart, finishing the update, all i had to do was connect to my network of choice, and now it runs good as new.
i hope this has helped you guys, because i know how stressful it is not having WiFi on your notebook.
Apple have dropped the ball with this bug, and in my opinion, should have performed more extensive tests on the software before it was released.
As of yet i've only had the opportunity to connect to my home network. I'm planning on testing with a different network when i go to university tomorrow morning.
However, so far i have had a full strengh, fast connection since i downloaded and installed 10.7.2 again.
So fingers crossed for testing tomorrow at university. I'll keep you posted.
Light at the end of the tunnel ! After trying every solution proposed in this very long thread, yesterday around 6PM I tried sblahauvietz's suggestion, and my WiFi has been alive, non stop, for 19 hours. I hope I don't jinx myself, but I don't think it's ever been on for so long until now.
Since I had tried many times to delete my network profile, it MUST be either a bad certificate or something gone wrong in a System Preference file. I hope it continues to work for other people !
Cheers, sblahauvietz !
I restarted my Mac Air (a clean installation with disk recovery) and since then everything works great. Probably sblahauvietz's solution makes the same effect but i preferred to start again.
I encourage you to try his solution or take (save) some time and fix it from the beginning. I think that something related to updating the version makes wi-fi card not to wake up properly once it sleeps.
I will keep you posted if something goes wrong.
Glad i could help!
However, i have booked in with my local Apple store genius bar to see if we can get a more permanent fix as i am not sure how reliable this fix is, having only found it yesterday.
I'll be sure to let you guys know what the Genius' have to say on behalf of the organisation for this ridiculous hiccup in the system!
It's beyond me why Apple still are yet to post any fixes on their support site, even if it is just a temporary workaround until the next update. I for one have always regarded Apple as brilliant in the aspect of customer service, but my views have been tainted in regard to this aspect of the company.
My reservation is at 7:20PM (GMT) so i'll forward on anything new that i find out.
But until then, i hope this simple fix keeps you guys going until the next, much needed update!
Went to see an Apple genius this evening, and he was the most helpful person i have ever encountered in any store!
basically, the problem (with my MBP in any case) was that the network settings had been corrupt either due to a interference during the download of 10.7.2 or at a later date.
Either way, it is clear that this is not a problem with the update itself, but interefence by the user either during download (interuption to download) or messing with your Mac's settings. As for me, i was using my notebook as normal whilst downloading, so this could be the source of my problem.
but now everything is fine, up and running with my WiFi as far as indicated.
i would highly recommend visitng a Genius bar and let an expert change the settings back to how they should be to eliminate the risk of messing up your system further.
If you live in Newcastle/Sunderland (UK) then i highyl recommend visiting the store in the Red section of the Metrocentre. This is the store i visited, and spoke to a guy named Graeme.
So, Thank you Graeme for putting an end to my stress related hair loss!
anyway, i hope this has helped you guys, and i hope you ar all up and running, surfing the net wirelessly once more with your Macs!
I gave up trying to fix this issue with my iMac upgraded to lion x and just purchased an airport extreme since my imac don't leave home. It has kept the internet alive to the past 36 hours. No issues yet.
I can't imagine how frustrating it would be if I had to use wireless outside of my home where it's not an airport extreme router.
Fix this already apple!