Vista - Router shuts down in sleep mode Vista 64

I have our wireless router hooked up to my computer at home. When I shut down my computer, the router stays up and working fine, allowing our wireless laptops access to the internet. The ethernet light stays lit and everything is fine. However, when I put my computer in sleep mode - something I would prefer to do rather than shutting it down when I'm not using it - the ethernet light goes out and the laptops can't connect to the internet. It even says no network connection is available.

Does anyone know if there is something I can do? Change a setting in Vista or in the system BIOS ? Is it something to do with the router?

The router is pretty old - Actiontec (GT704WG) but we've never had any problems with it.

I'm running Vista Home Premium 64 bit on a custom built system with an E8500 @ 4.0 Ghz and 8 megs of RAM
Motherboard - Gigabyte GA-X48-DS4

Thanks for any help

Is the ethernet cable running from the modem going into the router, or the computer? It would makes sense to me that if they were switched something like that would occur...

Upon further inspection.....Problem solved. Thanks