I have configured home assistant on Windows Server 2012 R2. I have it sitting behind IIS Reverse Proxy using ARR. The home assistant site works perfectly fine inside and outside of my network. I have IIS setup with a valid Let’s Encrypt cert and it converts to http communication with home assistant. I have been wiring up google assistant and to the best of my knowledge it is configured correctly including verifying my domain. I also have an api_password set. When i try to link it up in google assistant on my cell phone, i always get a 404. I see in the console an auth come through and a handshake being sent, but it’s still a 404 on my phone. It is also using some weird url that looks like https://[MY DOMAIN]/r/[client id]#access_token=[access_token]&token_type=bearer&state=[long encoded string]
Any help would be greatly appreciated.