Windows Vista HTTP requests stop working

Windows Vista HTTP requests stop working (This seems similar to an issue in "Vista Internet connection stops working until reboot" but has quite a few differences, so I'm posting it separately.)
Asked by: Guest \| Views: 265

Total answers/comments: 2

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Guest [Entry]

I would guess that it's probably your anti-virus software or firewall. As wil said, you should also check your proxy settings. This may be strange, but I've noticed that the StumbleUpon toolbar will make my http requests time out. I try using different browsers, and the http requests still time out. But, when I disable the StumbleUpon toolbar, then there are no more timeouts.

Guest [Entry]

"Does everything appear normal on your (wireless) connection details?

Is your DNS pointing to a real address?

I've had similar on Win7 that I'm trying to peg down the cause. But I believe that DNS the principle cause. I'm interested for selfish reasons on how this will play out. ... I was able to access sites over port 80 again after I disconnected and reconnected from the network, but I started out with restarts which also worked. Likewise other machines on the network are not affected."