Forefront TMG vpn client cannot access internal resource

Hi

I setup  forefront tmg 2010  pptp VPN  server.  The VPN client can connect to the server with IP address 169.254.x.x  and can ping the server RAS interface 169.254.x.x.  However, it cannot access any internal resource.  I have an old server win 2003 with ISA 2006 VPN can work with the same network setting. 

I have the server log when connecting to TMG VPN and find that " A packet was dropped because it cannot be forwarded since its
incoming and outgoing network interfaces have different zone indexes for the
packet's zone level"

Could anyone help on this?  Thanks You.

Best regards, Wilson