Looking for help from the pros!

Helping setup a professional practice, where there is a dedicated point to point VPN and a typical ISP modem/router for Internet.

Network has 5 systems, 2 of which need to access the VPN and all access to the Internet.

First we tried adding a router (linksys e4200) after the VPN to split it to the 2 systems. Set the router to the static IP (with auto config) from the VPN router, NAT'd and enabled DHCP for the 2 client machines - no luck calling out over the VPN; connecting a system direct and setting the static IP with the gateway of the VPN router works. Looking for some ideas here, as it appears the added router cannot reach (or not proberly set to) the VPN gateway.

Also need to bridge or bring in the Internet network to these VPN machines once its working - networks are on different subnets. Not sure if 2 nics would be required for this...

Any info/direction to the above would be appreciated. Cheers!