Help!! Can't connect to internet

I will be greatly indebted to anyone who can help me out. It all started yesterday when I realized my wireless network was not secured. I went to the online configuration for my router and enabled WEP encryption. As best as I can tell, it assigned it a key which I didn't notice before hitting save. At that point I was prompted for a key when trying to connect and eventually told "limited or no connectivity ". After hours, I reset the router, got back in and disabled encryption. Now, my computer is picking up the signal, is connected to the router, even exchanging packets. But I can't view webpages, use outlook, messenger, etc. It's like something isn't allowing me to USE the signal. Any ideas on what this could be?? Thanks in advance!!

Ryan

 

I think the first thing I'd try would be LSP Fix. Not the usual problem it was written to correct but certainly sounds like the same sort of thing. If not, it's harmless.