HomeKit in iOS 10 requires Two-Factor authentication if you plan to remotely control or monitor your smarthome devices. That isn’t a big deal, unless you’re one of the unlucky few who were blocked from switchting to Apple’s more secure password authentication system. The good news is that Apple finally fixed the issue, so HomeKit can be more that your in-home personal assistant again.
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.