TCP Error making computer unusable

[BusterStacks]

Alright gentlemen, this is a problem I have no idea how to fix. Every once in a while, usually while I'm asleep, my computer will randomly stop getting internet access. I have to restart before I can use it again. When I click on a web page in firefox after my connection goes down, it doesn't even attempt to connect, it just does nothing. However, things like AIM will sometimes remain connected. /images/graemlins/confused.gif

[BBill]

looking in the "event viewer" logs might be a good place to start.
If you are using XP just right click on "my computer" then select "manage" then expand "system tools" and there are 3 log files, Application, Security and System.

I'd look in the Application or system logs for any messages that are logged around the time you internet connection is lost.