What's going on with my router?

I've had this problem for over a year. It was worse when I had RoadRunner/Comcast. I recently switched to DSL---much better than cable internet; but, the problem still occurs----not as often. I can get online and roam the net---taking link after link or site after site----then, I click on a link to a website and everything stops----then this window pops up with this message: "The connection was reset The connection to the server was reset while the page was loading. * The site could be temporarily unavailable or too busy. Try again in a few moments. * If you are unable to load any pages, check your computer's network connection. * If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web." I have to unplug the power to the router (sometimes twice), let it reset----then everything is fine. When I had cable, I sometimes had to unplug the modem and the router before I could get things back to normal. Since I've gone to DSL (knock on wood), I've only had to reset the router; but, not as often. It is not any particular website---it has occurred even when I first attempt to get online to my homepage. I'm "hardwired"---not wireless. Is this normal (??) behavior for a router? I sometimes feel like laying this router in the street and driving over it! Any ideas what's causing this? Dimension 8400 1 GB SDRAM 3.4GHz 160GB Samsung CD-R/RW Philips DVD+RW Iomega HDD 80GB USB 2.0 Radeon X300 WinXP w/Service Pack 2 USR 8001 router DSL Firefox browser