I am running e-smith 4.1.1 on a Bigpond Direct Permanent Modem Connection. Some modifications were required to get it to connect, but once connected, I have had no further problems. I don't understand why you have 2 ethernet cards installed, if you are using a modem connection. I have only 1 NIC, and host multiple domains and mail servers. You can email me if you wish to get further information.