- Verify you’re on the same wifi network and signed in with same Apple ID
- Trobleshoot your network
- setup Homekit in the separate app associated with the lights, check to see if there’s a mismatch error or if any software updates are needed for the bulbs or bridge.
- Make sure the main is powered on ( light switch is on for example)
Follow the instructions for Home App here:
https://support.apple.com/en-ca/HT204893#delete-reset and more info https://support.apple.com/en-ca/HT207057
- if you continue to have trouble you can remove the accessory from Home App, then set it up again
https://support.apple.com/en-ca/HT204893#delete-reset
Delete your home or remove accessories
To remove an accessory from the Home app:
- On your iOS device: Press and hold an accessory, tap Settings, then scroll to the bottom and tap Remove Accessory.
- On your Mac: Double-click an accessory, click Settings, then scroll down and click Remove Accessory.
If you remove your home from the Home app, all of its data, like accessories, scenes, automations, and people you’ve invited to control your home, will be deleted. You’ll also need to reset each of your accessories before you can set them up again. To reset your accessory, look for a button on the accessory, check its manual, or contact the manufacturer.
To delete your Home and all of its data from the Home app:
- On your iOS device: Tap
in the upper-left corner, then scroll to the bottom and tap Remove Home.