The Chromecast 2's device authentication certificate expired (march 9th 2025)

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Short summary of the incident. Usually 2-3 sentences that summarize the contents or the article.

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The Google Chromecast 2's device authentication certificate expired on March 9th/10th 2025, preventing use of all devices via any method. Workarounds are known already, but no word yet from Google on a fix from their end, or if one is even coming.

This is a stub, please add to it if you know more.

Background

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$2

[Incident]

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None so far.

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References

https://www.androidauthority.com/chromecast-device-authentication-error-3533424/ Article from Android Authority

https://www.themirror.com/tech/google-chromecast-down-users-report-1020960 - News article from the Mirror US

https://www.reddit.com/r/Chromecast/comments/1j7lhrs/the_chromecast_2s_device_authentication/ - Reddit thread discussing the issue in detail, with workarounds in the replies.

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