Second-generation Chromecast and Chromecast Audio devices are facing a problem that prevents them from casting content. If you try to use an affected device, you'll see one of two errors -- either, "Untrusted device: [name] couldn't be verified. This could be caused by outdated device firmware," or "We couldn't authenticate your Chromecast."

Google says that its fix solves the problems for both the Chromecast Audio and 2nd-gen Chromecast, and that users should receive this patch over the course of the next few days. In order to get the software, the devices will need to have an active Wi-Fi connection.

Google has acknowledged an issue with older Chromecast devices. If you're experiencing a problem, it recommends you not perform a factory reset while the fix is implemented.