lionheart
i am using the private side for 2 machines though so il keep it like this..
Those 2 machines should be protected by the firewall in your router.
The local network side of your router is already "private".
Why do you have your sme server in server and gateway mode ?
I assume your router and cable modem are already doing the login client function and providing other services to the network eg firewall, dhcp, etc, so you have unnecessary duplication in your sme server.
The correct way to configure your sme server in this arrangement, is in server only mode, and have the sme and the 3 client machines connected to the router via the hub.