Cannot add service to Google assistant

Hi everyone,

I am following the manual setup of this guide to add Google Assistant integration: Google Assistant - Home Assistant (home-assistant.io)

Everything works as expected up to the point where I want to connect the service in my Google Home app. My Service “[test] …” appears in the search and when I click it the auth page of my HA instance shows in a browser window. After the login and some google progress icon turning it jumps back to the Google Home app but the service was not added.

What am I doing wrong?

Thanks and best regards
GaRv3

Have you exposed entities, if no entities present in your config, it doesn’t link

This is my in my configuration.yaml:

# Google Home Assistant Integration
google_assistant:
  project_id: xyz
  service_account: !include googleAuth.json
  report_state: true
  exposed_domains:
    - media_player
    - script

Okay, so this is very annoying.
Ich double checked everything, created a new service etc.
There seems to be no way to fix it :disappointed:

Would be very happy if anyone could come up with an idea how to fix it.

Is it possible that the issue is cause by the DS-Lite characterisitc of my internet connection? I do not have a public ipv4 address. Maybe Google tries to contact my server through ipv4!?
Is there a way to configure the Google service to use ipv6?