Google Nest Community

I got a 2nd google router for my guest house. It is hard wired. I want it to be a router but it configures it to a point. I want it be a router.My connection is as follows:1st Google router connected to my ISP modem/router2nd Google router connected ...

When I use my google home network and say "broadcast to ..." The next thing is says is what's the message. But when I want to broadcast to a specific home mini, it says "broadcasting now" and does not ask me the message is. I changed the device name ...