https://www.androidauthority.com/how-to-fix-chromecast-authentication-errors-workarounds-3533849/

This work-around worked for me if anyone else needs it. It’s a bit cumbersome but beats buying a new device. Hopefully Google pushes out a fix.

I may have to switch to something else if they’ve intentionally bricked the chromecast. It definitely won’t be a Google product though if this turns out to be intentional. If anyone has any recommendations, I’m all ears.

Chromecast stopped working on me today, thought my device died but turns out it’s widespread. Thought I’d share in case anyone else came looking for answers.

Just did mine last week, I hate it so much

I’m with you on the houseplants, starting to branch out (lol) into hoyas now.