I can connect, but cannot ping/route to remote VPN computers

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http://serverfault.com – Setup: L2TP VPN Server on a Windows Server 2008 machine which is behind a router, which is behind a modem/router. Modem/Router (IP:, Subnet:, DHCP serves to router) ----|_ Router (IP:, Subnet:, Sub LAN IP:, Sub LAN Subnet:, DHCP serves 192.168.0.* to computers) ------------|_ Windows Server 2008 (IP:, Subnet:, serves VPN IP address from pool... - The router sets WS2008 as the primary DNS, WS2008 forwards queries back to router for failures. See (HowTos)