No Web_GUI if LAN is DHCP and GUI only on LAN

[Patrick M. Hausen]

But ... why does opnsense simply don't do that?
Handle the access to the web-GUI and SSH by setting system rules and listen general on 0.0.0.0
instead of really doing a bind.

It does do exactly that when you leave the listen interface at "All (recommended)". 0.0.0.0 is what that setting means. You did explicitly set it to only listen on LAN but LAN does not have an IP address at the time the UI starts.

That's why I told you "simply don't do that".

🤷