I reported on this problem some time ago in the Browser forum and i thought i had cured it by restarting my modem and the router but it seems the problem "creeps" back.
My set-up is a virgin media broadband connection to one of their modems, which then has a 20m CAT5E running outside the house to the Router (also supplied by VM).
My desktop PC is cat5'd to the router which are close together.
I've had this set-up for sometime now and never experience problems when my desktop was running XP and IE7. I also have a laptop running XP, IE7 and AVG free which uses the wireless connection and does not suffer any connection problems at all.
My desktop is now running Windows 7 32bit and IE8 with Kapersky Internet Security 2010. ( I have also tried AVG free before kapersky and also tried firefox).
When i remove power from the modem and router and re-start them, the problem seems to be fixed but then by the end of the week, i am experiancing the problem again on random websites, some work, some seem to time-out and give the error message.
If I click on the "Diagnose Connection Problems" Windows 7 goes through its motions but tells me the problem could not be identified. Then when I close the troubleshooter, IE8 seems to do a refresh and the page i wanted displays just fine.
I cant work out whats going on.
I have tried replacing the 2m cat5 between PC and router with no effect.
Any ideas please?