What do you seen when you issue this command:sh ip nat translations | inc 216.68.40.10

Try the following from RONMON:rommon 1>MONRC=BOOT=flash:,2; rommon 2>sync rommon 3>resetIf successful negate the boot system flash: command from your startup config.issue a dir flash:If it shows only one IOS there would be no need for the boot system...

Doa route print and make sure that you don't have 2 default routes on your server inherited from your dual NIC setup.

I agree in full with this solution, the only thing I will add is a second Ethernet interface.

Just an ideaRemote Routerint FastEthernet0ip address 172.16.0.1 255.255.255.128ip address 172.16.0.129 255.255.255.128 secondary!int Serial0encapsulation frame-relay...!interface s0.1 point-to-pointip address 172.16.1.254 255.255.255.252fram-relay in...