If you upgraded to iOS 10 on your iPhone or iPad, and tvOS 10 on your fourth generation Apple TV and now can’t remotely access your HomeKit devices, there’s probably an easy fix for that. Odds are you haven’t enabled iCloud Two-Factor authentication, which HomeKit in iOS 10 and tvOS 10 requires. Read on to learn how to get set up.
PSA: iOS 10 No Longer Supports 3rd-Gen Apple TV as HomeKit Hub
Are you an early HomeKit adopter using a third-gen AppleTV as your hub? If so, you may need to buy some new hardware after upgrading to iOS 10, as the new features in Apple’s home automation and control platform also introduce new compatibility requirements.