Local HTTP does not work, HTTPS and DuckDNS works fine

Configuration
1

Hello,

(running the latest hass.io on SSD via USB on RasPi 3b+)

I am confused. What could prevent the local http://homeassistant:8123 from functioning? (tried the ip address as well)

Getting

# This page isn’t working

**192.168.1.2**  didn’t send any data.

ERR_EMPTY_RESPONSE

Inside the HTTPS works.
From outside all works well https://home.duckdns.org

Nothing in the error logs (unless I am not looking at the right place for them)

I have the following add ons running:
DuckDns
AdGuard Home
Nginx Proxy Manager
Samba Share
and a few other unrelated add-ons (like GoogleBackup, FileEditor etc)

Any ideas would be much appreciated.

2

Are you running a reverse proxy with https configure there or do you have ssl enabled in HA and are port forwarding 8123 at your firewall? Post the http: section in your configuration.yaml file.

3 
http:
  ssl_certificate: /ssl/fullchain.pem
  ssl_key: /ssl/privkey.pem

disabled AdGuard and Nginx Proxy Manager so that they are not in the picture at all…

So just standard HA and redirecting 443 to 8123 from the router

4

having this same issue when trying to configure duck dns according to the instructions, i suspect they updated home assistant in favor of the cloud platform so remote access only works if you have subscribed to ha cloud as they’ve removed the option to add a add an external url in advanced settings under general configuration.

5

HA can use https:// or http://, but it can’t do both. As soon as you configure certificates (https://), you can’t use http:// anymore.
Unless you use a reverse proxy for https:// (but then the last leg to HA is still http://, so the above is still true)