What is the problem?
I've got up and running instance of HomeAssistant on my home network, additionally I've got different router on different than home network at the basement (LTE). I've got OctoPrint server placed in basement with connection to LTE network. I've already tried port forwarding in order to remotely access OctoPrint (no luck, seems operator block this option also security reason make me feel concern about that) I've decided then to install Obico plugin and this works pretty fine, I can access OctoPrint via tunnel see stats and progress. Nevertheless I still cannot configure HomeAssistant integration via this tunnel.
What did you already try to solve it?
I've tried to manually add Octoprint in configuration.yaml - unfortunately no luck with that either.
Have you tried running in safe mode?
n/a
Did running in safe mode solve the problem?
n/a
Systeminfo Bundle
You can download this in OctoPrint's System Information dialog... no bundle, no support, unless the reason you couldn't retrieve the bundle is your network issues
WRITE HERE
Additional information about your setup
OctoPrint on RPI 3 ; HA on RPI 4 with SDD ; printer Anycubic Kobra 2 Neo