[pptp-server] trying to connect to a remote vpn through a router

[Kingsley Foreman]

ive been trying to connect to a remote vpn using poptop through a router set
up to use nat

eg

my pc ------nat------linux
router--------------internet--------------------vpn server

and it won't let me connect or it times out or doesn't transmit any packets

anyone got any ideas why it is doing this

it connects from other places without any probs

trying to connect to a remote vpn through a router