So this is a problem I've had pretty consistently since I got my cable broadband hookup, and its starting to get on my nerves.
When I'm just doing regular browsing or playing a game, its fine. But when I start streaming movies and video or downloading via bittorent, it'll sometimes just disconnect. Usually unplugging the router and plugging it back in will fix it, but sometimes I have to unplug the cable modem too. And sometimes I have to unplug both of them twice to get my internet back.
I use a personally-owned Motorola cable modem that I bought a few days before the cable guy came so I don't think that its broken, and I have a Linksys E2000 router, which is one of their better consumer models. So I don't really know what the problem is here. I want to call the cable company and get someone out here, but I want to be sure its not a problem with my own hardware.
My router links my PS3 and my computer with a wired connection, and my phone wirelessly.