I purchased a used camera to try out the ONVIF support with my ring alarm pro. It is a 5 year old camera and it seems to meet all the requirements that I could find. It works for several days, then the ring app says it is offline. My router (an eero) indicates it is still online and transmitting data. The only way to get it back is to unplug it from my PoE router for a few seconds. Also one time I set it up, motion detection worked great, I had the issues of it going offline so I reset the camera to start fresh and since then, the motion detection did not work. The camera is a Nuuo BL3102 model. That might be my issue but I wanted to see if anyone has actually gotten this to work properly.