Ever received those "stream encryption" errors on Hikvision iVMS-4200 client when trying to view cameras via the Main Live View screen.
This is caused by enabling the "stream encryption" option on your NVR. To enable the iVMS-4200 client to display the Live camera stream
the "encryption key" needs to be entered for each camera.

We have put together a video blog post to show you how to fix this error.

MAC Users:

The iVMS-4200 client for MAC does not support entering the "stream encryption" key at time of writing.

To enable the iVMS-4200 MAC client to view the Live stream, the "Enable strem encryption" needs to be disabled/de-selected via the NVR onboard menu under Configuration->Network->Platform Access