Google Nest Community

I suspect that Google will not move to remedy this because the Chromecast devices are designed to connect only to HDMI ports that support HDCP 1.3 (or HDCP 2.2 for 4K) that is more common on TV's than on computer monitors - https://support.google.com...

A person from another group posted that he resolved the problem by connecting Chromecast to an HDMI switch connected to the LG monitor.