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Nest will not let me to connect to my Google Hub

Community Member

Hello, new to this product. I have been using Google Home to control smart lighting and power for some years, but have just bought a Google hub (2nd gen). I managed to set up new rooms, and migrate all my old devices onto it, that works fine. I then bought 3 google smoke & CO2  detectors. I followed the instructions and loaded Google nest onto my android phone, and managed to set the 3 devices up ok. Then the issues started, I cannot connect to Google Nest through Google Home, it just says passed or username is invalid. I have changed my Google password, but it still does not lets me pair these devices with each other, Thanks


Community Member

Same here, I bought the HUB Max and 2 nest smoke/co detectors but can't connect Nest to Home..??

What am I doing wrong? Please advise.

Community Specialist
Community Specialist

Hey there,
Sorry for the late response, but I wanted to drop in here to help.

I understand that these issues can be confusing but I definitely wanted to stop by and see how I could help.

Just wanted to double check to see if you were still needing help on this? If so, what troubleshooting steps have you tried?

Please let me know.

Best regards,
Garrett DS

Hello Garrett


Many thanks for jumping on this for me.


I will need to start again from scratch and document the issues that I see on the screen

When I load the smoke/CO2 units, I can see them in the nest app, but I cannot get google hub to add them to my home by rooms. It allows me to select nest from the pick list of apps it can talk with, then stops.


I will document it over this weekend.


Many thanks



Hello Garrett


I opened the google nest app

Scanned a QR code on the base of 1 smoke/CO2 detector

Gave it a location

woke up device

connected to my wifi router

device set up

added device to my nest account, no issues so far


opened HOME app

+ set up device

works with google

opened search, found nest

asked if I wanted to lInk your nest account


asked me to sign into nest

Entered my email & google password


Come back with "your email or password may be incorrect"

last time i tried to link them, i changed my google password, that did not help


Hope you know a solution


Many thanks



This where i get stuck