Why is it impossible to preview the live view of my camera in the Web UI?

Why is it impossible to preview the live view of my camera in the Web UI?

The first time that you are connecting to the Web UI, you have to download the camera plugin to preview the live stream of your camera.

Warning: Please note that the video live stream feature may not be available as it can be blocked by your antivirus software. You must allow the download and installation of the plugin for the live preview to work.

Download the Plugin to View the Live Stream

Download the plugin to display the video live stream by clicking the link written in orange on your screen and follow the instructions.