For no apparent reason my laptop started delaying page pulls. Rebooting had no affect.
If ALL network adapters were disabled, meaning no LAN or WAN connections, there was still that initial delay prior to pulling the "This page cannot be displayed" error where as it was immediate before. It's as though it were waiting on something to timeout. Each time the query was repeated, there was that same delay.
After entering the URL, IE, Opera, FireFox... the problem obviously independant of the browser being used, would have an initial delay of 2 to 10+ seconds prior to pulling the actual page. Could immediately see the initial traffic go out which assumed, is the DNS query... then there would be that period of no communications at all over the network adapter for 2 to 10+ seconds. (didn't matter what adapter was used, ethernet, wireless, usb ethernet...)
Used ERUNT http://www.snapfiles.com/reviews/ERUNT/erunt.html
to load an old registry from February, (the most recent backup unfortunately,) and of course noted that the issue disappeared. Restored my original registry in attempt to try and isolate the issue.
The only change made to the system recently was having shared the network adapter's internet connection. So I unshared that network adapter (no others were shared) and rebooted. Things were back to normal and pages pulled immediately as they did before.
Observed this same issue on another PC before however there were no network adapters shared on that PC. To resolve the issue on that one I overwrite the entire network stack from a freshly installed counterpart system as didn't have time to troubleshoot. I took a snapshot of my registry when the problem was present, I'll compare it to the current and problem-free registry and see if I can get more information and find out what changes.....