The Nest Hub (2nd gen) works as a Matter controller, and Matter is the standard that lets devices work with Google Home, Apple Home and others. If a Matter device will not add, the first checks are on the phone and the network: the phone must be on the same Wi-Fi as the Hub, Bluetooth must be on for the pairing step, and the device must be in pairing mode with the code ready. A Matter device that is already paired to another app must be released from it, or shared through multi-admin, before Google can add it.
For Thread devices, the Hub acts as a border router, so the Hub and the device need to be close during setup. Apple Home does not control Google devices directly; use Matter sharing to give the other app access. If the Hub is offline in the app, fix that first. When a Matter device works in one app but not another, the cause is usually the sharing step: the second app needs a pairing code generated from the first. Both Google Home and Apple Home can create one.
Differential
Likely causes of “Nest Hub will not connect through Matter, HomeKit or another platform”, and how to tell them apart
- 1
The phone is on another network
What separates it The device cannot be found
How to confirm Join the phone to the Hub's Wi-Fi
- 2
The device is still paired elsewhere
What separates it Adding fails with an error
How to confirm Reset it or share it through multi-admin
- 3
Bluetooth is off
What separates it Pairing never starts
How to confirm Turn Bluetooth on
- 4
A Thread device far from the Hub
What separates it The device is slow to appear
How to confirm Set up with the device near the Hub
- 5
The Hub is offline
What separates it The app cannot reach it
How to confirm Restart the Hub and router
Before you touch a setting
Record this first — changing settings destroys the evidence
- The device brand and whether it supports Matter
- Whether it is paired to another app
- The phone and Hub networks
- Whether the Hub is online
Try in this order
0 of 9 completedCheck the Hub is online
ReversibleIn Google Home.
Join the phone to the same Wi-Fi
ReversibleAs the Hub.
Turn Bluetooth on
ReversibleFor pairing.
Put the device in pairing mode
ReversibleHave its code ready.
Release it from other apps
ReversibleOr use multi-admin sharing.
Add it in Google Home
ReversibleAdd, Matter-enabled device.
Generate a sharing code in the first app
ReversibleIn the app that already controls the device, choose Share or Turn on pairing mode, which creates a one-time code.
Add the device in the second app with that code
ReversibleOpen the second app, choose Add Device and enter the code or scan the QR.
Check that both ecosystems are on the same network
ReversiblePhones and the Hub must be on the same Wi-Fi during the setup of Matter devices.
Model-specific
What is true of this model and not of its siblings
- Multi-admin
- Matter lets one device be shared across apps.
- Thread
- The Hub acts as a Thread border router.
- Multi-admin
- Matter lets a device be controlled from several apps once it is shared.
- Thread range
- A Thread device far from the Hub or a border router may not join.
- Updates
- Matter support improves with Hub and app updates, so install them.
Stop boundary
When this stops being a self-service repair
- !If the device will not add after a reset, contact its maker
- !If the Hub is the issue, contact Google Nest support
- !Check the device supports Matter
Evidence ledger
Sources behind this answer
Exact questions
Common questions
Is the Nest Hub a Matter controller?+
Yes.
Can I use Apple Home and Google Home together?+
Yes, through Matter multi-admin.
Why will my device not add?+
It may be paired elsewhere.
What is a border router?+
The Hub connects Thread devices.
Can Siri control a device added to Google Home?+
Yes, if you share it through Matter to Apple Home.
Do all smart devices support Matter?+
No, only those that are certified for it.