RRAS Stops Working after a couple of hours HELP Please in a Confer

I'm running a technolgy conference and had to put together a 03 Server where
I'm doing Nat on the LAN side and pointing to a WAN interface. It works for
a while but I when I have a lot of users the WAN interface drops off. I have
changed components and it still happens. Anyone know of these issues? Also
when I occasionally start the service it stays up fine. I want to write a
batch file and use schedular to recyle the service ever hour or so. I can't
find the right service that will allow me that action. Anyone know? I have
tried doing a net stop svchost but that isn't the right service.

I'm half way in the middle of my confernce and this is annoying to
presenters. Help is really appreciated and the sooner the better. Thanks in
advance.