Since i isntalled 15 Server and Advanced i constantly loose connection:
"Communication with the host was interupted, files with uncimmited changes in layouts or script wil be closed, and these changes will be lost.
Do you want to try to reconnect other files."
Its the same setup as before Win 10 and Server 2013 everything ie did was uninstalling Fm Server and Advanced on one client and the reinstalled everything.
Untill now i reinstalled Advanced, but not the Server.