Google Cast had a platform update on January 7, 2022 rendering some added features inoperable as they require an update that is incompatible to the MA770 unit itself. Master & Dynamic's MA770 Wireless Speaker product is currently discontinued and further updates to Google Home since January 2022 have rendered all features related to Chromecast Built-in and Wi-Fi Connectivity inoperable. This update also rendered the stereo pairing feature inoperable. Unfortunately, Master & Dynamic does not have control over 3rd party services choosing to update their technology platforms in a way that is no longer compatible with the MA770 speaker.
If you have any questions or need any additional support on this subject, please submit a ticket, and one of our representatives will be able to assist you further.