Internet Cuts Out When Computer Idle

I recently got a wireless router for my home. Everything works fine until I leave my computer for an hour or so and then come back. My connection is cut and I have to turn the router on and off to get the connection back. I know this happens every once in a while but this is every time.

I am wondering if there is some kind of settings that I should check on my windows or some way to check the settings on the router before I call my ISP about it.

For the record I have one computer with Vista and one computer (the one that is connected via wire to the router) on Windows.

Thanks for any tips.

 

What model router do you have?

 

The label says D-Link with a model no. DSL-2640T.

 

Ok, I can't find that manual but I found one for DSL-2640D, I'm assuming they're similar...

You may need to set the "Keep Alive" setting on "Section 5 - Home" page 26 in the manual link above (Right hand side - Product Manual).

Let me know if that helps.