I have the same problem, was hoping to find a solution here.
I connect to my network, has the name on the top of the screen, has a "wifi" logo right under my signal bars, in the menu the Wi Fi has a grey box with a white dash through it.
It will connect find to the router, but it won't give me internet at all. I'm sure my router is fine, as my PC gets the signal fine. I'm not sure if there's any more setting i'm supposed to set up or not, i searched for my network and put in the WEP.