I upgraded yesterday to 2021.7.0 and before that WAN access was fine.
Now I’m stuck and get that “Unable to connect to Home Assistant” “RETRY” screen with the HA logo.
From the logs:
Integration: HTTP (documentation, issues)
First occurred: 11:08:45 AM (12 occurrences)
Last logged: 11:24:53 AM
A request from a reverse proxy was received from 172.30.33.5, but your HTTP integration is not set-up for reverse proxies
Running Home Assistant OS 6.1 with core-2021.7.0
From private session I get “400: Bad Request”