Network Settings Failed

I have the same problem. Did you figure it out? If so, please share!

You usually just need to go into System Preferences under Network, to select Airport in the left pane, then to click on Advanced, then in the next screen, to delete your current network in the left pane, to add it again. You'll have to enter your passphrase, of course, but it's usually the best option. That and restarting Airport from the Menu bar.

If you can't connect again after recreating your network in System Preferences, enter a dollar signe before your passphrase to fool the Keychain app.

Found this fix didn't work for me; though didn't try putting dollar sign in password, (couldn't imagine it would work). Fix did however, after rebooting through recovery disk (10.8) and 'repair permissions/disk' from 'disk utilities'. It now doesn't seem to hang on network settings after coming out of sleep mode: which had become a norm. Maybe a combination of above (resetting network settings) and fixing disk permisions is a possible solution.

Worked for me 😁

Well,

Try these steps,

Unplug everything on your mac except power cord ethernet cable to..

Now Make sure you have battery less than 98 %.Once the power cable is plugged hold Command +Option +R and pressing this buttons press the start button and you will see the power light on power cord connected to your mac goes green for some seconds and then becomes orange now,Dont boot and press command+option+p+r and holding these buttons boot onto system,Yeah youll listen startup chimes two time and then it will boot on to the os next follow these steps,

You usually just need to go into System Preferences under Network, to select Airport in the left pane, then to click on Advanced, then in the next screen, to delete your current network in the left pane, to add it again. You'll have to enter your passphrase, of course, but it's usually the best option. That and restarting Airport from the Menu bar.

Thanks Atman,

GOOD LUCK :-)

Thanks for the solution French Toast. I had to go through the process of using the $ (dollar sign) in order to make it right. But it worked! We are back up and running!