Unable to connect to home assistant if not all ports opend

If I forward only the ports, which I activated in the NGINX add on, I can not reach my HA instance from the internet. I have to forward all ports to reach my HA instance. I tried it with two different phones via mobile network and a PC via “normal internet” at home (forgot how it is called).

My server is running Home Assistant OS and obviously the NGINX Home Assistant SSL proxy add-on.

I have no idea why this happens. Has anybody an idea? Am I missing something?

if it’s anything like Nginx Proxy Manager, i thought once you go down the reverse proxy route, you are essentially shutting out “port access” (for want of a better phrase) and forcing everything through the Nginx. Maybe I’ve misunderstood your set up or question (highly likely :)).

I have Nginx Proxy Manager set up. Hypothetically If I put home-assistant through that then it will only be accessible via homeassistant.mydomain.com and not via my.server.ip.address:8123

I think this is by design (at least for docker containers). Is this similar to what you’re experiencing?