-Removed-I had a similar problem, I think. I'm using a DG834 (not wireless), and it would just drop loading pages all the time. If I continually hit "try again" it would eventually load. I also searched all over and found the solution.
What fixed the problem completely was switching over to openDNS. http://www.opendns.com/start/
All you need to do is follow the very simple instructions and put two addresses in your Basic Settings on your router config page.