Hyper-V 2012 R2. RemoteFx. "The remote session was disconnected because there were network problems during the licensing protocol. Please try connecting to the remote computer again."

After a Installation from Windows 8.1/windows 7 everything works fine. For example  Install updates and Software. If I connect the first time a remotefx card i can use RDP as well. But if i restart the host I get the mentioned error. What can I do. These Hosts are not in a domain configuration. I tried it too but there was  no difference. I didn't discovered any errors in the eventlog, too. Only an actviex error. But same errors occurs with a succsefull rdp session.

Also strange is if i start the vm without a remotefx card it works fine again. Only session with a Remotefx card aren't possible anymore.

Is there a bug or something. I tried it many times with the same error.

Maybe someone can help me. 



kind regards  

Tobi