This will lead you to a screen, which will let you view your Wi-Fi password. Once you have located it you need to right click on it and choose "Get Info". Go through the menu to find your Wi-Fi network and select it.From there you will be able to access your Wi-Fi networks. Once Keychain Access starts up you'll need to press on "System" in the upper left side menu.If you don't know where it is use Spotlight to search for it. First, press the Launchpad, find "Keychain Access" and click on it.(My setup is: clean "Mountain Lion" install (with restore from Time Machine) and Airport Express base station. I checked the power management settings (command pmset) and defaults but couldn't find anything. (These two don't relate exactly to disconnects after locking but more generally to connectivity problems in "Mountain Lion".)Īs a last resort, a clean install (restoring applications/settings from Time Machine) might help.
Some claim that Apple WiFi equipment spares them from suffering this issue (maybe because an old, possibly incompatible base station was replaced?) ( and ).Ĭhange MTU size to prevent dropped connections (also ). Lock the screen differently, for instance with a 3rd party program (, applies to Mac OS X 10.7.5) (I use hot corners for that). Although I own a similar MacBook Pro that runs 10.8.2 I can count myself fortunate not to suffer this issue.Ĭonsequently the list below is rather a compilation of possible fixes (some may even seem absurd or just plain obvious) than tested recommendations: Other people's Macs are misbehaving in a similar way, read for example this and this. Typical output is: AirPort preferences for en1: To list the interface settings, run in Terminal. When WiFi is the only active interface (that is, no Ethernet cable attached). You can get it with this Terminal command: ifconfig | grep -B 6 'status: active' | head -n 1 | cut -d : -f 1
Where en1 is the name of your Mac's WiFi interface. EDIT: Please see John's answer above, which basically says to open Terminal and run: cd /System/Library/PrivateFrameworks/amework/Versions/Current/Resources