I generally use Chrome as my viewing and playback tool. When opening the NVR address I can view and see playback footage for all my 5 cameras. However when I login in to each camera, all except my most recent one, I cannot get images and receive the message that I need to install the plugin. My most recent camera is unaffected so I can see imagery. Can anyone assist with an explanation of why the NVR and one camera can show imagery but not the other four?