Computer won't connect to Wi-Fi but everything else does.

Hello,


I just turned on my computer after a long time and tried to connect to the internet unsuccessfully.
Every time I try to connect it either says "The Internet Conectivity test was unsuccessful" or "Windows cannot connect to [Connection Name]"
When I click on diagnose the problem it says "Windows did not find any problems with this computer's network connection." then it gives me the option to "Send a report to Microsoft" or "Windows can only doagnose one wireless network problem at a time."

I have already reset the router and the computer, I have tried netsh int ip reset, I have tried upgrading the NIC drivers throughna USB but all that does is stop responding and not download.

I'm on windows Vista and it's an hp Pavilion elite m9340f desktop

Any help?