Google's Chromecast 2nd-generation and Chromecast Audio have encountered a significant outage as users reported an 'untrusted device' error, preventing content casting due to an expired security certificate. The problem stems from an intermediary certificate that expired on March 9, 2025. Google is aware of the issue and has assured users that a fix is in progress. They advised against performing factory resets, which will not resolve the authentication issue. Additionally, a workaround is available involving changing the device date to before the expiry date, though it may not be successful for all users.
Many users of Google’s Chromecast 2nd gen and Chromecast Audio encountered an 'untrusted device' error due to an expired security certificate affecting device authentication.
Google has acknowledged the problem with Chromecast devices and is actively seeking to provide a fix, urging users not to factory reset their devices.
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