Second-generation Chromecast and Chromecast Audio devices stopped working on March 9. Google hasn’t said what went wrong, but an expired device authentication certificate authority is a likely cause.

Tech-savvy netizens quickly traced the issue to an expired intermediate certificate authority – created by Google to handle authentication for the affected equipment – which lapsed on March 9, 2025, ...

Chromecast users are facing authentication issues. We explain what happened to cause the issue, and what you can do to fix it ...

Google's Chromecast and Chromecast Audio are facing outages due to an expired security certificate, hindering device casting.

Google’s second-generation Chromecast and Chromecast Audio devices have encountered authentication issues due to an expired intermediate Certificate Authority (CA) certificate, marking a significant ...

Chromecasters are freaking out that they may not be able to keep up to date with their favourite shows, as the hardware device is experiencing a strange global “casting” outage.