Currently I have an issue with an Balance 30 Pro. Firmware 8.1.0 build 4943. It is installed on a ship.
On WAN 1 I have a Satellite modem connected. which is priority 1.
As Backup I am using cellular.
In order for the Satellite modem be online and to work it needs to communicate with the Satellite antenna which is on the lan side (192.168.10.240) it communicates thru TCP Port 4001.
The problem is that when Health check is enabled there is no communication between. I Put already a Port Forwarding in. I tried Firewall Inbound and outbound allow all. In outbound policy I enforced the Antenna to always use WAN 1. But unfortunate it does not work.
The moment I disable Healtcheck the communication is working directly.
When I am only using WAN 1 it is not a problem. but we also want to use Cellular as backup. And that will not work work when healtcheck is disabled.
So I am wondering if I’m missing something or if you have an good ideas.