I am using a duckdns address to reverse proxy into HA. Custom headers were set up and everything was working fine. Unfortunately, I can no longer access HA remotely now, including via the iOS app. Not what changed. All I am getting is a screen with the HA logo saying “Unable to connect to Home Assistant”. When I click retry I get a blank page saying https://ip/lovelace might be temporarily down…blah blah.
Any ideas?