Currently Being ModeratedAug 6, 2011 9:22 AM (in response to Toronto Photographer)
I am also having this issue since the OS X Lion install. Much of the time when my Macbook Air (late 2010) comes back from sleep the wireless will not connect automatically to the established SSID. I have to select it from the list.
Currently Being ModeratedAug 6, 2011 9:40 AM (in response to Liz in LA)
My partner is experiencing the same issue on his iMac (the latest) which was upgraded to Lion from Snow Leopard.
However, I have the latest MacBook Air that came pre-installed with Lion from the start. The problem does not occur on this machine.
Which makes me wonder if the bug only occurs on machines that were upgraded from Snow Leopard to Lion (not a pre-install or clean install of Lion).
Currently Being ModeratedAug 9, 2011 8:41 AM (in response to Toronto Photographer)
i have similar problem with my macbook after upgrading to lion.
after waking up from sleep mode, the wireless is connected to the previous network, however cannot access the network until i switch off and on the wireless!
this is super irritating.....please fix this!
Currently Being ModeratedAug 13, 2011 10:40 PM (in response to Toronto Photographer)
We have 2 iMacs, MacBook and Apple TV and this new Lion software is completely screwing our wireless connection/home-sharing up. Apple Tv hardly ever works, because it can't 'find' our computers or will just die halfway through looking at something, saying that it can't find the computer. Plus, we can't file-share most of the time, and everytime i try to print something (which is also wireless, but goes from the other computer in the house) i can't, because my iMac, has issues with finding the other iMac in the house. And we had never had these problems until the moment we installed Lion. Please help, it's so frustrating!!!
Currently Being ModeratedAug 13, 2011 11:35 PM (in response to Toronto Photographer)
there is a solution but it involves replacing Lion's kernel extensions for Airport with those from Snow Leopard - see my post at https://discussions.apple.com/message/15917492 on page 32 or so. Be warned that some would recommend against such a strategy, but I now have a rock-solid wireless network under LIon whereas for the first 3 weeks I was also ready to throw laptop out the window!
related posts on "wifi constantly dropping in Lion" at https://discussions.apple.com/message/15917496
good luck with it
Currently Being ModeratedAug 14, 2011 3:56 AM (in response to NateOne)
Hello NateOne and Everybody,
My partner contacted technical support in Japan and this issue was not documented. It has now been raised a level and the top engineers are looking into it.
I also spoke to the person from technical support and mentioned this thread as proof of how others are having issues.
The best thing to do is to contact Apple's technical support so it gets on the radar of Apple throughout the world, otherwise there will be no fix with the next upgrade.
So, I ask all to help by contacting technical support!
Currently Being ModeratedAug 14, 2011 5:10 AM (in response to Toronto Photographer)
I followed Adrian's advice...
wifi has worked fine ever since
Currently Being ModeratedSep 10, 2011 11:00 AM (in response to Toronto Photographer)
I had a 39.95 linksys router (2yrs old) - all the issues described above...switched to a 149.95 CISCO (new) - all connectivity problems vanshed.
I do not know enough about Mac OS of the Firmware of the routers, but switching routers solved all the problems for me.
Currently Being ModeratedSep 25, 2011 2:02 PM (in response to Toronto Photographer)
Had the same issue on a 2009 MacBook Pro after I upgraded to OS X Lion. Called Apple Support. They chalked it up to a corruption when upgrading. Had me:
1) trash the '/Library/Preferences/SystemConfiguration' folder
2) empty the Trash
3) shutdown the computer and leave shutdown for 30 seconds
4) startup the computer and select my network from Airport
5) put the computer to sleep, wait 30 seconds
6) wake the computer and ensure that Airport had established a connection to the network and set my network as the preferred network (as it had)
Hope this helps.
Currently Being ModeratedOct 21, 2011 1:31 PM (in response to Toronto Photographer)
I've got a 2010 macbook air. Upgraded to Lion - wireless problems, even with 10.7.2.
I've got a 2010 macbook pro. Upgraded to Lion - wireless problems, again, with all iterations of 10.7, including 10.7.2
Got a brand new macbook pro 17 inch, upgraded to Lion - you guessed it: Lion wirelless problems.
What happens is well documented: the computer gets a signal, but then losses the connection a minute or two later.
I've downgraded the Macbook air and 2011 Macbook pro to Snow Leopard and no problems whatsoever.
LION HAS A SERIOUS FLAW IN THE WAY IT CONNECTS TO WIRELESS. I'm just amazed Apple released this and then, hasnt' been able to fix it yet.
They're all about the CLOUD!!! and yet, their new cloud-based OS has serious problems connecting to the internet?!?! That's seriously lame.