Thank you Bitt. Good point. I overlooked ht UDP part.

NETSTAT -O will tell you what process is owning what port. But I can't figure out what porit SBS wants, instead. I know the HTTP interface will use port 9000, and that is free. I don;t know instead what port is being used by SBS to connect to the players.

Also, what has changed in terms of ports from 7.3.3?

And, I can't find where to change SBS port...