Hello - I just installed Win 7 64 bit on my pc. The problem is after a certain amount of time (not sure what the time length is) the browsers stop browsing. I have IE as well as Firefox 4 Beta. When this happens I can ping the firewall, I can ping public DNS servers and websites. But both browsers fail. But they don't bring up a page that says can't connect, they just kind of ignore any web request - both browsers act identical.
When this happens I've tried to disable/reenable my network connection (it's a wireless NIC), I've tried disconnecting from the wireless AP, I've tried closing all programs and firing up the browsers again. No dice. Reboot resolves it though.
Since this is a new install of Windows 7 I believe it's software related- just not sure what the culprit is. Everything worked fine with XP SP3 on the machine.