Apple TV gen3 as Home hub

Apple TV (3rd generation) has limited abilities for home hub functionality, and should probably be avoided if you are serious about HomeKit. Automation options are not available. Shared Home users are not supported. HomeKit bluetooth devices are not supported. In order to use the 3rd-generation Apple TV as a home hub it must be the only home hub on the network. As soon as a newer Apple TV or HomePod is added, the 3rd-generation Apple TV is disabled for HomeKit.

1. Make sure the same Apple ID is used throughout: One HomeKit owner.
2. Make sure your Apple ID has two-factor authentication turned on.
3. Make sure iCloud Keychain is on (check your iOS device Settings﹥[Your Name]﹥iCloud﹥Keychain)
4. Once you’re signed in with your Apple ID under on your Apple TV under Settings﹥Accounts﹥iCloud, it should automatically be set up as a HomeKit hub.
5. You can check the status of your Apple TV as a hub in the Home app (iOS/iPadOS) by tapping the Home icon in the top left corner﹥Home Settings﹥Hubs & Bridges﹥ʜᴏᴍᴇ ʜᴜʙs﹥.