Issues with google assistant and Home assistant

[openg12]

Hi. I have same problem like yours, but I’m not use nginx proxy only duckdns addon…
I just create new project (deleted old one) and change dusckdns to dynu dns (free) and its been working great for 3 days now…

Add-on: Dynu DNS (alternative to DuckDNS)

As DuckDNS is a bit shaky recently, I created an alternative add-on using the Dynu DNS provider, which ranks as amongst the best free dynamic DNS providers around as far as I could see. It has a bit more variety as far as the root domains available, which is nice. The addon is at 99% a copy of the duckdns addon. Disclaimer: I don’t use the add-on myself. My “main” HA is not even on HassOS, tbh. This is a “gift” to the community, and an exercise for myself. About Dynu DNS is a free service…