Having a problem just like this in the past few days, my iphone, desk top and laptop can't connect to my RG on the WI-FI connection. Seems like it connects then kicks me off then connects. All my machines see the newtork but can't connect to the internet.

Being pretty tech savy I had to break down and call the techs to comeout to check it out. They will be here tomorrow I'll tell you what they say. I can still connect via hardwire to the web, but the w-fi on the RG doesn't like me for some reason the past few days. My guess new RG will be installed!