Nest 2 not connecting to chromecast audo

[Artee60]

I have 4 nest hub 2's, they all worked perfectly streaming radio stations to chromecast audio and other devices. Suddenly they stopped being able to do this. I reset them all added them back into Google Home. Now they play radio from tunein but show no information on the screen, Spotify does not work at all. Changing the audio to the nest returns all the functionality. With the audio set to the chromecast audio no automation works either. 

[JuanCH]

Hi Artee60,

Thanks for reaching out to the community! I understand your four Google Nest Hub units suddenly stopped being able to stream radio stations to Chromecast audio and other devices. While TuneIn now plays, it doesn't show any information on the screen, Spotify doesn't work at all, and automations fail when the audio is set to the Chromecast. I appreciate all the efforts and steps you've already taken. I'd be glad to help!

To find the best solution, I have some questions for you:

• What’s your Google Nest Hub specific model? Please check out the following link for your reference: Google Nest and Home device specifications
• Is your Google Home app updated? Visit our helpful article to check it: Update the Google Home app
• Are all your Google Nest Hubs and Chromecast audio devices connected to the same Wi-Fi network?

Keep me posted.

Regards,
Juan