Windows 2003 Routing FREEZES

We have a subnet of about 30 clients and connect to the internet through
another network. Owners of the other network have given us a single routable
IP address which we have assigned to one of our NICs on a machine configured
with WIN 2003 routing. We counfigured NAT routing on our router. Trouble is,
our Windows router freezes after about 30 minutes, or at times after an hour.
We are then forced to stop and restart the routing service.
Only windows Routing is the software of signficance running on this box.
Please advise a possible workaround.

Thanks in advance

T.

there are many possibilities. here are two cases,

The Internet downs every 30 minutes
Trojan and spyware block accessing the Internet

Bob Lin, MS-MVP, MCSE & CNE
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
This posting is provided "AS IS" with no warranties.
Don't send e-mail or reply to me except you need consulting services. Posting on MS newsgroup will benefit all readers and you may get more help.
"T." <(E-Mail Removed)> wrote in message news:EB6E3ECC-86A1-4D56-A351-(E-Mail Removed)...
We have a subnet of about 30 clients and connect to the internet through
another network. Owners of the other network have given us a single routable
IP address which we have assigned to one of our NICs on a machine configured
with WIN 2003 routing. We counfigured NAT routing on our router. Trouble is,
our Windows router freezes after about 30 minutes, or at times after an hour.
We are then forced to stop and restart the routing service.
Only windows Routing is the software of signficance running on this box.
Please advise a possible workaround.

Thanks in advance

T.