Below are useful Hik-Connect videos:
How to register an account via Hik-Connect APP
How to register Hik-Connect account via web browser
How to enable Hik-Connect via local GUI
How to enable Hik-Connect via web browser
How to enable Hik-Connect service and add device via Hik-Connect APP
How to activate device and enable Hik-Connect service
How to add devices into Hik-Connect via web browser