Currently Being ModeratedMay 21, 2013 7:50 AM (in response to steph269)
Thanks for using Apple Support Communities.
For more information on this, take a look at this article:
AirPort Quick Assist
For troubleshooting on this, take a look at this article:
Troubleshooting Wi-Fi issues in OS X Lion and Mac OS X v10.6
Hope this helps,