Make sure that the Annke Vision service are enabled. By default, the Annke Vision service of the Hikvision devices are disabled. Or you should enable them manually.
You can select either adding device by scanning QR code or adding device manually. You can also add the online device.
For details about adding by scanning QR code, see Adding by Scanning QR Code.
For details about manually adding, see Manually Adding.
For details about adding online device, see Adding Online Device.
For details about adding Mini Trooper, see Adding Mini Trooper to the Client.