I’ve setup a Mac Mini as a web server with a letsencrypt certificate. It all works fine.
I can go to https://mydomain.com no problem. The problem is that if I’m on the same network that the server is on, the page just loads “forever” until finally it says “The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.” (firefox). Why is the cert treated as invalid/insecure when I’m on the same network as the server?
I can confirm it’s working when I access the site from outside my network, e.g. through a vpn or my mobile network.
Ideas? Been struggling with this all day