This issue shows up when trying to access the video stream of Hikvision CCTV IP cameras using the iVMS-4200 software. You try to open up the cameras on the iVMS-4200 and you can’t see anything because it says the “stream is encrypted”. Follow the steps below to fix this issue.
Step 1. In the main iVMS-4200 control panel click on Device Management.
Step 2. Click on the Group tab.
Step 3. Select camera in question and click Modify.
Step 4. Enter Stream Key (type 12345) in the Modify Camera pop-up.
Try to see if you can view your cameras on the iVMS-4200. If you have a similar issue, read this article as well: “How to fix “Invalid encryption key” error on a Hikvision NVR/DVR“.