Chromecast Audio and 2nd-gen Chromecast video all stopped working worldwide in Google Home with ‘Untrusted Device’ error

[Hedda]

Cross-posting from Home Assistant community forum thread -> https://community.home-assistant.io/t/chromecast-audio-and-2nd-gen-chromecast-video-all-stopped-working-worldwide-in-google-home-with-untrusted-device-error/861989

Chromecast Audio and second-generation Chromecast video devices now all fail to work as global outage, with Google Home app showing 'Untrusted Device' error, so it now no longer possible to use Google Cast audio or video casting to these due to expired security certificates, as a 10-year old SSL certificate expired now as perfect example of purposeful planned obsolescence strategy from Google:

• https://www.androidpolice.com/unable-to-cast-to-chromecast-youre-not-alone/

• https://9to5google.com/2025/03/09/chromecast-2nd-gen-audio/

For Chromecast Audio there is currently no equivalent Google Cast audio-only product you can buy as a replacement as a Google Cast audio (music) receiever, so many users are stuck in limbo now.

I mean, there are many expensive aternatives, and in the future you can probably simply use the audio-output jack on the Home Assistant Voice Preview Edition, but today it does not support syncronized multi-room audio. Could this community make a better audio-outout-only product to solve this gap and need for inexpensive multi-room audio dongles?

That is, while some hacky workarounds might come, however I think a better follow-up question for the Home Assistant and ESPHome communities is if anyone are working on plug-and-play replacement product for the "Chromecast Audio" dongle with no cloud dependencies for those of us who only want an alternative inexpensive audio-output dongle with no microphone for voice just to use to achieve syncronized multi-room audio with relativly high-quality music playback to external speakers/recievers?

I believe we also need an much more enhanced/improved native media player for ESPHome with advanced features such as syncronized multi-room audio and ability to pair two seperate ESPHome devices a as single stereo pair, and for that to ship with Home Assistant Voice Preview Edition reference firmware? ...so maybe either build on Squeezelite media player client or expand the new media player for ESPHome that Nabu Casa created for Home Assistant Voice Preview Edition

Current relevant Informatio about all "Player Providers" supported by Music Assistant:

• https://www.music-assistant.io/player-support/

PS: For reference also check out blog on other indirectly related progress made on Music Assistant:

• https://www.home-assistant.io/blog/2025/03/05/music-assistants-next-big-hit/