Until yesterday I hosted a Mumble (1.2.2) Server on a VirtualBox Machine and everything was ok.
Today I converted the same VM to VMWare and now i get the following error:
The only change is the IP of the vm: Old ip: 10.0.2.15, new ip: 10.0.2.14.Connection closed: The remote host closed the connection 
If I connect through OpenVPN everything works fine.
The default Port (64738 tcp and udp) is forwardet through the NAT.