Google Nest Community

I have the gen 2 Doorbell and for some reason it's stopped sending me notifications. I don't get notifications when someone rings the doorbell and when people are seen. I've checked my settings and the notifications are turned on. How can I fix this ...

My nest thermostat is connected to the wifi but the Google home and nest app is saying it's offline. I've reset the WiFi on thermostat and still says offline. I think is have nest thermostat 2nd gen.

Recently installed the new doorbell battery but mines is wired and It doesn't show the live stream on the Google home app.