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Unable to see MJPEG video from CCTV NVR

I'm remotely accessing a CCTV Network Video Recorder. All the admin functionality works, but I can't see the actual video stream from the cameras.

I'm remotely accessing a CCTV Network Video Recorder. All the admin functionality works, but I can't see the actual video stream from the cameras.

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If you can't view your Nest camera's video feed on a computer, you might see one of the following errors:

   The Nest app says Your camera is off.
   The Nest app says Your camera is not connected.
   The video shows a spinning circle or does not load.

Select the corresponding error below to solve your problem on a Mac or Windows computer at home.nest.com.

If you can't view your Nest camera's video feed on a computer, you might see one of the following errors:

   The Nest app says Your camera is off.
   The Nest app says Your camera is not connected.
   The video shows a spinning circle or does not load.

If you can't view your Nest camera's video feed on a computer, you might see one of the following errors:

   The Nest app says Your camera is off.
   The Nest app says Your camera is not connected.
This message can have several causes:
   The camera is unplugged from the electrical outlet.
   There was a power outage.
   The camera has been disconnected from the Wi-Fi network.

Hi abdouhimidi123, thanks for the response. I'm not using Nest, I'm using a commercial CCTV system. I should have provided more symptoms, I'm sorry. I can see the camera working correctly on the monitor attached to the CCTV system NVR, so it is on, attached, powered, etc. I just can't see the video from it. If I connect directly to the camera, I get an error messge "Your browser version does not support plugin, and so some pages and features are hidden. Live view not supports MJPEG"

Ah sorry also I had not understood to know which browser you use