On March 9, users of Google’s second-generation Chromecast and Chromecast Audio devices experienced connectivity issues due to an expired authentication certificate authority. This problem affected official Google apps, though some unofficial apps like VLC continued to function.
The expired certificate left the devices displaying “untrusted device” errors, preventing them from operating properly. The certificate had been valid for ten years before expiring over the weekend, leading to widespread frustration among Chromecast users.
Google Rolls Out Firmware Fix, Factory Reset Users Face Additional Challenges
Although Google has not yet issued an official statement on its support page, it has confirmed that a firmware update is being rolled out over the next few days. The update will automatically reach affected Chromecast devices as long as they remain powered on and connected to the internet.
This fix will move the devices to a new Google-owned certificate authority, which has an expiration date set for 2045, ensuring users can continue using their devices for another two decades. However, Chromecast as a product line was discontinued last year, meaning no new hardware updates will be available.
Google Fixes Chromecast Outage, But Factory Reset Users and Future Expirations Raise ConcernsUsers who attempt to troubleshoot their devices by performing a factory reset are facing additional challenges. Since the expired certificate is embedded within the firmware, resetting the device removes all user data, including Wi-Fi credentials, making it impossible for the Chromecast to reconnect to Google’s servers for an update.
Google is working on a solution for these users, though it may require modifications to its Google Home app to bypass the expired certificate and allow affected devices to receive the necessary firmware update.
Expert Weighs In on Fix, Other Google Devices Face Future Certificate Issues
Tom Hebb, a Chromecast enthusiast and former Meta software engineer, highlighted the complexity of the issue. He pointed out that the Google Home app currently enforces the expired certificate, preventing updates for factory-reset devices. According to Hebb, Google will likely need to update the Home app to stop enforcing the expired certificate, making it easier for users to restore functionality. Despite the complications, Hebb praised Google’s ability to develop a fix for a decade-old device in just a few days.
The certificate issue isn’t limited to Chromecast (2nd Gen) and Chromecast Audio devices. Other Google products, such as Chromecast Ultra, Google Home, and Google Home Mini, could face similar problems in the coming years, with their certificates set to expire in 2026 and 2027. Google will need to release timely updates for these devices to prevent another widespread outage. While the company’s quick response to the current issue is commendable, this situation underscores the importance of proactive certificate management to avoid disruptions in the future.
