All network preferences are frozen on my macbook. This problem happens when I do the following:
- Fast User switching is on.
- At least two users are logged into the system.
- I've switched from one wifi network to another.
When this happens, Airport appears to hang. The airport icon in the menu bar runs through its "searching" animation forever, and airport cannot be turned off. If I attempt to access network preferences from the system preferences it hangs and won't respond.
The only console message that appears is when I force quit the process opening system preferences: ([0x0-0x180180].com.apple.systempreferences[3599]) Exited: Terminated: 15
I also can't open the Activity Monitor.
I cannot switch users, and if I log out the user I'm in I'll lose a lot of work (I'm running a long simulation that is not complete), and also, in the past this has not helped. How can I force airport to die?
Things that do not work include killing processes with the word "airport" in their name.
OS: 10.7.4 Hardware: MacBook Pro i7