Solution 1:
If you haven't already follow the instructions at http://support.apple.com/kb/PH3853
And this thread discusses a variety of configuration problems that some people have had http://forums.macrumors.com/showthread.php?t=1192376
If you haven't already follow the instructions at http://support.apple.com/kb/PH3853
And this thread discusses a variety of configuration problems that some people have had http://forums.macrumors.com/showthread.php?t=1192376