Key Takeaways
1. Second-generation Chromecast devices, including Chromecast Audio, are experiencing casting issues reported by users on Reddit.
2. Users attempted various troubleshooting steps, like resetting devices, but were unsuccessful in resolving the problem.
3. Two workarounds emerged: resetting the device and setting the date before March 9, 2025, or using a specific tool with settings adjustments.
4. Google has not officially acknowledged the issue, but customer support confirmed awareness and is working on a fix.
5. The problem may be linked to an expired intermediate certificate authority, causing authentication failures for these devices.
A peculiar global “casting” issue appears to be impacting second-generation Chromecast devices, which include Chromecast Audio. The first mention of this problem surfaced on Reddit, catching attention on the r/googlehome subreddit, where numerous users expressed their inability to cast content using their devices.
Troubleshooting Attempts
Users have shared (via Android Police) their attempts at resolving the issue, which included resetting their devices, but none of the steps have been successful. It’s possible that this problem stems from a faulty update that Google may have released. Users reported encountering one of two error messages: either “We couldn’t authenticate your Chromecast” or “Untrusted device: [device name] couldn’t be verified. This could be caused by outdated device firmware.”
Workarounds Found
As Google works on a solution, two workarounds have emerged on Reddit. One user, reading_crows on r/googlehome, mentioned that they managed to get their device functioning again by resetting it and manually setting the date to before March 9th, 2025. This method should enable users to re-add their devices through the Google Home app.
The second workaround is a bit more complex, requiring the download of a specific tool and some adjustments to settings. Although Google has yet to officially recognize the outage, customer support informed one user that the company was “aware of the problem and waiting for a fix.”
Theories Behind the Issue
One Reddit contributor speculated that the problem might be linked to “an intermediate certificate authority that expired March 9th, 2025.” This expiration appears to be causing authentication failures on Google’s servers for the second-generation Chromecast devices. It was suggested that this could be “an unintentional mistake by Google where they failed to account for the CA expiry.”
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