I believe I have installed everthing correctly.
registered at the Syrinscape.com
a Syrinscape Banner in Fantasy Grounds Unity
entered a authentication code
started the Syrinscape Online Player
connected the Online Player (entered the PIN Code, connected 24 min now)
installed Syrinscape Fantasy Player and tested it (it works)
When I choose a sound in the Syrinscape Sound Windows (in FGU) I get a window with play/stop buttons. No sounds is heard when clicking play.
Might I have missed something?