Hello,
I installed SSL Add ON (Let’s Encrypt) , which works perfectly when i open my HomeAssitant over Internet ( DNS cloudflared).
But when I try to use it local over the Rasp(4) - IP-Adress , it only works without “https”
Does this mean your DNS is with Cloudflare, or you’re using a tunnel via the Cloudflared add-on?
If the latter, ONLY traffic that is proxied via the addon is secured with SSL. Traffic that ISN’T proxied is NOT secured, hence why you get an error trying to use HTTPS on your LAN IP - there is nothing listening for HTTPS on LAN connections.
If you want SSL on your LAN, you need to use something like Nginx or maybe set up Let’s Encrypt properly.