network VS internet connection

Let me explain my little problem:

I set up my internet connection to disconnect if idle for 5minutes (I also auto-dial for folding@home).

Everythings is fine with this, except for my other computer that use this internet connection od the main computer. I do connect, but never disconnect and this is keeping my line busy!

Is there a way to set up??

Thanks!

I'd need more details.

What OSes are you running?

Are you using ICS, or another type of connection sharing program?

I'm using windows xp pro and the windows internet connection sharing.

Thanks for helping me!