@MikeRo 

• Each camera also supports up to 2 simultaneous video streams. You could use up to 2 devices to view the live feed of the camera simultaneously using the Tapo App or via RTSP. You may also only view the playback of a camera using one Tapo app at a time.

If you need consistent playback across multiple devices, you may want to look towards some sort of NVR or proxy server that would make use of the networked RTSP/ONVIF video stream, as this would use the second stream and that service/app may be able to be viewed from additional devices at one time.

Each stream from the camera puts a load on the cameras computing power, so it is better to limit the function of the camera so that it will funtion as expected. If additional views are needed, the second stream exists to allow this type of connection without impacting the normal function of the camera.