Freelance Emulator on Windows Server 2012

Hello, we try to run freelance Controller Emulator on Widows Server 2012. We start the Controler and the feedback is running.OPC is still running on Server.

In Control builderF is displayed "no Connection" on Windows 7 PC.

We install Control Builder F (Version 2013) on Windows Server. So all Programms on the same server. All Programms are running. But no connection between Control builder and emulator.

Are some special Networtsettings needed?

Thanks for Help

Bernd