Why won't mac recognize I am connected to network?
Network diagnostics shows everything is connected through wifi. However ichat, safari, mail, and even system update says I am not connected to the network. I know I am connected because the internet will work through firefox. This seems to happen after the computer goes to sleep sleep. The only way I can it working again is to restart the computer. Started happening after I installed Lion. Any ideas?
Mac OS X (10.7)