Re: ER PoE - dual WAN, port forward problem

you're missing the firewall rule that corresponds to the DNAT rule Image may be NSFW.
Clik here to view.

You need to add these two rules to WAN_IN:

        rule 40 {
            action accept
            description "Accept SSH"
            destination {
                port 22
            }
            protocol tcp
        }
        rule 50 {
            action accept
            description "Accept OpenTTTD"
            destination {
                port 3979
            }
            protocol tcp
        }

SSH is likely having an issue because you don't have "sticky" enabled on the loadbalancer.

set load-balance sticky protocol enable

should do it.