I don't know if this will help or not but I had the same problem a while back.
Eventually I got It recognised by trial and error edits to the .ini files.
This is my currect client ini:
[Config]
UseTCPIP=Yes
ServerName=Mainpc
Port=8002
Window=32000,32000,160,34
Visible=Yes
I seem to remember that the instructions said it would use "TCPIP" by default but both server and client ini had "No" where "Yes" is above, so this had to be changed. (assuming you want to use this protocol)
So you have to edit both the client and the server .ini to yes
Couldn't help sticking my nose in and if I'm way off beam here, my apologies. It may have been changed by now.
Martin