Which ports are required to be open for the online player to function correctly.
It appears that tcp dstport 7977 outgoing is needed
Also I couldn't make the master control panel play any sounds without me also running the online player app - is that expected?
Yes. The Browser is just the UI.
The Player makes the sounds. "pew pew"
@tai_admin Is this something you can answer?
Yep. Outgoing TCP port 7977, plus HTTP/HTTPS (80/443).
This has been promoted to a ProTip!
Thanks for the highly useful question @Bluedreamer