Hi  @DrTek

May I know would like to use the smart device in both Home APP and Tapo app, or only the Home APP? If using in both apps, it is recommended to set up the Homekit device within the app

Video for Tapo Homekit plug

If there is any error message, please check if some tips help:

HomeKit setup troubleshooting

• Please ensure VPN is OFF on the phone 
• Ensure there is internet access on your phone via Wi-Fi before adding a new device 
• Try to factory reset the device before the configuration.

If you continue to face any error, can you share a photo of error in the app and let us the step you've tried, thank you!

 Hello @DrTek  May I know were you able to install the plug at last, any update is much appreciated, thanks!