Windows 2003 R2 and VPN Server

I have a windows 2003 server that is also does file and print sharing. The issue I am having is that once I have enabled Routing and Remote Access to setup a VPN server. I am no longer able to browse any shared folders or access the shared printers. Once I disable RRA everything is fine. Is there something I am missing in mysetup steps?

I configure this server to be a straight VPN server, no NAT, just PPT and IP address are handed out by the DHCP server. Can anyone shed some light on this for me. This is my first time setting up a VPN server.

Thanks,

Peter Lor