@tfresh911
When you try to connect to your 1st gen Google Nest Hello Doorbell in the Google Nest app and it connects and disconnects, does this occur all the time, or only when you try to do so when the doorbell rings?
I'm asking because when the small internal battery in the Google Nest Hello Doorbell wears out (it's now worn out on all 3 of our Nest Hellos), the doorbell goes offline for a minute or so whenever the doorbell button is pressed.
The reason it goes offline is because the purpose of the internal battery is to provide power to the doorbell during the instant when the doorbell button is pressed and power needs to be diverted to ring your indoor doorbell chime.
There is a workaround. If you turn off the "Indoor chime" option for your doorbell in the Google Nest app, it no longer tries to ring your indoor doorbell chime, and therefore no longer goes offline. We've done this on all 3 of our doorbells, and rely instead on "Visitor announcements" f(https://support.google.com/googlenest/answer/7672451) to get announcements on our Nest Hubs and Nest Minis.
Here is a very long now-locked thread on the issue, with over 1,000 replies:
https://www.googlenestcommunity.com/t5/Cameras-and-Doorbells/Nest-Hello-Doorbell-cuts-out-when-butto...
