Internet working for 1 minute

[RockyN]

My iMac is connected to WiFi, however the internet will not work at all. The only way it begins working is if I go to "Assist me" in network settings and click on diagnostics. What could be causing this issue?

 

[IA64]

Too many things... Upload a Wireless Diagnostic report to check

How to create a WDR ( http://support.apple.com/kb/HT5606 )