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)
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.
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.
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)