The firewall test happens against http://mirror.freepbx.org which is different from trunk1 and trunk2. If you’d like the firewall test to pass then you just need to open the same ports up for mirror.freepbx.org
My experience with port management solely involves IP addresses so this is throwing me off. The mirror.freepbx.org will this be UDP as well? I’m not to sure as too how to accomplish this. I’ll do some research.