Accessing the webGUI from a WAN interface

[fishingboat]

Hello!

I have my OPNsense set up with three WANs with failover configured and a single LAN interface.

I can access the webGUI no problem from the LAN,  but I can't get it to load from a device
over one of my WANs, which is essential to my project.

Under the WEBgui settings, it is configured to listen on all interfaces, on port 443.

I've been messing around with firewall rules following forum posts here and elsewhere but I'm
pretty new at this.

Any help is greatly appreciated :)

[errored out]

Did you setup your rule for the correct interface?