Hi Dave, welcome to the forum.
These initial issues are usually caused by firewall settings. Try turning off the firewall on server and client first to establish the connection, use static ip addresses and check if you can ping your clients from the server.
There are many posts on the forum regarding network connections.
Out of interest how many screens have you to control so far? The magicinfo pro system is fantastic once it's up and running, really you are only limited by your imagination and technical prowess, the system forms the backbone and how simple or complex you want the the end result to be is down to you :-) The other brilliant part is you can add more screens at any time and get them running the same information with no more work, or have them running something completely different!
EricL