My network administrator has just deployed a new firewall policy and WLP stopped streaming on the streaming chart and the strategy monitor even though they have TCP port 80 (http) and port 443 (https) opened.

Looking at tcp ports while running WLP, I found WLP establishes tcp connection on port 9002. Fortunately, my network administrator let me try opening port 9002 and I have confirmed WLP requires port 9002 in order to streaming to work.

Is this new on recent updates (6.9.15 ~ 6.9.16)?
According to wiki and forum search, WLP needs port 80 and 443 only. Never mentioned about port 9002.

The Wiki FAQ addresses Wealth-Lab Developer whereas you're working with Fidelity WL Pro. Port 9002 must be a requirement of Fidelity's own streaming provider (which isn't part of WLD). Thanks for bringing it to light, I'm updating the FAQ accordingly.