Hi All, I have a BT USB ADSL Modem box connected to my ISA server with one network card installed. I need the rest of my PC's in my house to connect and work through my ISA server but it doesn't want to work. Do I need two network cards in place? or what is wrong and why can't i connect to the Internet through my ADSL Modem. With one network card in place I have assigned an internal IP address like 172.20.XXX.XXX and the ADSL modem has it's own assigned IP address which is supplied by BT, but it doesn't work