Ripping,
Paritech DM connects to our server via a socket connection (unlike DataDirector which connects using HTTP). What this means is that if you are behind a firewall, Paritech DM may not work while DataDirector does.
Is your computer protected by a firewall? Does your ISP block any socket connections?
To get Paritech DM to work through a firewall, you need to have Port 211 (TCP) opened for outbound connections.
Regards
Paul