It looks like the problem might be with the Video Player, perhaps it's not able to play live streams? Does anyone know if this might be so, and what I may need to install to make sure a live stream will play?
You will need to make sure you are using the right streaming protocol for any particular device. Some devices support one streaming protocol while not supporting another. For example, some Andorid devices support only RTSP, while other support Apple HLS. Also iOS device only support Apple HLS streams and you won;t be able to play back RTMP or RTSP streams using the native iOS player.