I have a Ring battery doorbell. The doorbell connects to my wifi without issue, but motion sensing seems to work about 1 time out of every 5.  The connection is good (RSSI is -46) and live view seems fine.  I have over a gigabit of internet speed and no other problems with any devices.  I have rebooted both the camera and the router with no improvement.  I have tried everything I can think of, including isolating the camera to its own SSID and giving the camera priority via QoS. I have also tried adjusting motion zones to no avail.  My ISP is Xfininity and I am using their Sercom router.  I live in an isolated area, so competing wifi should not be a problem. Any other suggestions?

Thanks