Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Mountain Lion no Wifi after wake from sleep

Hey guys,


I have the following problem:


after I wake my 17" MacBook Pro 8,3 (early 2011) from sleep by opening the lid, it starts searching for a WiFi network to join. It will just keep searching and searching, without ever finding anything. When I try to click on the WiFi icon in the menubar I get the beachball, also the System Preferences are affected by this crash - I can't go to "Network", it also beachballs. The only way out is a restart.


To prevent this from happening I can disable WiFi before putting my mac to sleep, but that's quite inconvenient. I have disabled all Auto Proxies, tried to delete the known networks from both the Network pane and the Keychain.


😟

MacBook Pro (17-inch Early 2011), OS X Mountain Lion

Posted on Jul 27, 2012 11:06 PM

Reply
Question marked as Best reply

Posted on Jul 28, 2012 1:22 AM

Ok, I finally fixed this myself.


Go to "System Preferences > Network" and select the WiFi-Service from the list on the left. Select "Options" from the bottom right of the right pane. In this window, delete all the known Networks and hit OK. Then go ahead and delete the WiFi device. Create a new WiFi device and you're done.

421 replies

Jul 29, 2012 4:30 PM in response to dzatona

For me, it's anything after an hour. My mac mini misbehaved at first when I installed Lion. Then it just worked after that. My MacBook Air was fine until I messed around with it and had to re-install Lion. Wi-Wi's been an issue since. I thought ML might correct it and it appeared to do so on the first day, but it's right back to misbehaving again.


My encryption is WPA-2. Come to think of it. I changed it from WEP around the same time I re-formatted. I haven't turned my mini on since I did all this, and I don't have the same problems when I'm at work (I don't know what kind of encryption they're using, if any at all). I'm beginning to wonder. I won't be opening my Air on for a few minutes. I'll see how the IPv6 change goes and go from there.

Jul 29, 2012 4:37 PM in response to Dr_David

Would I have to be using Time Macine?


I've always used Apple Script and Automator along with rsync commands to do my backups. I'm a it old school. If Time Macine is somehow involved, how would I go about correcting this and why did it only happen after I did a clean re-install of Lion?


About the only changes I've made are with my router's encryption and I chose not to install MS Office this time around

Jul 29, 2012 4:55 PM in response to Dr_David

I don't have Time Machine enabled either. I've been trying to look over the console logs just to see if there's anything I can't quite find anything that looks like anything. At least to my untrained eye. There seems to be a lot of little errors but nothing that just screams out Wi-Fi or something. Can somebody who knows more about reading console logs take a look? Still going to go back 10.7 at least for now.

Jul 29, 2012 6:52 PM in response to ilovecode

This is weird. I decided to make another admin user, logged out of my main user account and tried to recreated the issues in the new account. The first re squire of the wifi took a bit and I thought it would hang like before. Then it came back. I even did the delete keychain items to boot. Tried a few more times with lid closed, etc. worked fine. Logged out of new user. Logged back into old admin user, my normal account. Everything seems fine. I hope. Will do a longer sleep test now and see. What would doing keychain management in another admin user do to this situation? I dunno.

Jul 29, 2012 7:35 PM in response to primalman

I have these exact symptoms.


I'm not really convinced that it's network related, even though the Airport thing does seem to be searching for a network. When its hung, I can't do anything in Safari, but from the terminal I can tell that I am actually connected to the network (ifconfig), and I can ping my router, perform DNS lookup, etc.even though the Airport icon is not completed.


I tried killing SystemUIServer, since that controls those menubar items, but this didn't really help. SystemUIServer didn't restart itself.


Still investigating.

Jul 29, 2012 8:31 PM in response to ilovecode

I'm having the exact same issue. Waking the machine from sleep and it hangs trying to connect to the network. Seems to kill everything. Last time it happened I had to hard restart the machine. (hate doing that).


Are we certain that its the network connection process that is causing the issue or is it just happening within those first few seconds of wake when the machine is still looking for the wifi network.


I had a weird thing happen right after I installed mountain lion where Panic's Transmit would hang when I started it up. Transmit has been open each time this happened but I doubt its related. However figured its worth mentioning.


Hope we figure this out soon.


BTW, I'm on a 15" MBP (mid 2010 model)


Fish

Jul 29, 2012 8:56 PM in response to primalman

I filed a radr on it (a bug report); also, I've been harassing applecare.


BUT, I'm wondering if there's a common LaunchDaemon or LaunchAgent?


Here's my LaunchAgents and LaunchDaemons... (click the image to see it all!)User uploaded file


To see yours, go to Macintosh HD -> Libraries -> LaunchDaemons / LaunchAgents


Is there a common program that's causing the issue?

Mountain Lion no Wifi after wake from sleep

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.