You may want to disable using remote network gateway. This search result may help,
routing issues on vpnRouting Issues on VPN. Can ping VPN server only but not other resources Can't access the internal server when remote client establishes VPN ... www.chicagotech.net/routingissuesonvpn.htm
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
i'm connected at work via vpn but can not print local. will only print at work