Not so much a "getting started problem" but a problem in the app.
So, everything works:
Chromecast is visible in the app
Chomecast works on the tv
I can cast from my laptop (chrome) to the tv, I can mirror the laptop
And also casting from certain apps on my Iphone directly or with a extra app my whole screen is possible.
What does not work:
In the Google home app I see the device but can't do anything there. It can tell if it is on or offline with the main tile. But when I go in it says:
"Not available
Couldn't find Chromecast in this wifi-network. Check if the device is online and if your phone/tablet is connected to the same wifi."
100% sure I'm using the same network
Main screen:
When I click the Chromecast:
When I click setting:
