I have a windows 7 machine (dell studio xps). Everything on it seems to be in working order. The network device says it has internet connectivity, and indeed I can ping websites, transfer files via ftp, connect to vpns and remote desktop, but the web won't work. I've disabled the windows firewall and still no go. There are no other firewalls installed. The computer came with a trial of norton 360 so I also used the norton removal tool (which solved a similar problem on another computer for me previously). The windows 7 network trouble shooter says no issues detected.
Edit: Just tried WinSockFix with no luck
Edit 2: This isn't a proxy issue. Telnet to port 80 or 8080 fails to connect.
Edit 3: Some other things worth mentioning:
- I've tried deleting and reinstalling the network device (though it was kind of pointless since the problem happens with the wifi connection too)
- I've run virus & spyware scans from multiple vendors, all come out clean
- It's definitely the computer itself. The problem persists regardless of where it's connected (home or work)