Same problem as everyone else here: works great during the day, doesn't work at all (i.e., no motion detection) after dark.
I've tried to post a couple of pictures, not sure if it works or not.
The first is me standing on the porch 2 - 3 ft. from the Ring doorbell. Everything in the picture looks great, even the neighbor's house across the street is clear.
The second is me standing just off the porch. It's difficult to see, but I am there. In the picture everything is dark and indistinct. Though in the first picture you can tell the neighbor's brick is a bit orange, in this second pciture you cannot even distinctly see the house.
The lighting is the same in both picutures: it's dark outside and my porch lights are on.
I'm not sure when the problem started. When I first installed the doorbell a year or so ago, it picked up everyone passing by after dark. Now it doesn't even detect me standing about 10 feet away.
Seems to me like an issue in their software.
It is still happening for me. I have given up on Ring (sic Amazon) fixing this. I am moving on to a different doorbell solution...one that actually works as advertised.
I had a ring doorbell pro. It was junk. Ring's IT department, a wonderful lady named Rose, tried to help me out. She contacted me through Ring Community. Even sent me a corner kit for free. However, just problem after problem with video, going offline even though the doorbell was hardwired, and door bell ringing properly. I never did any serious research on the doorbell. However, I did research on a ring spotlight cam battery. I've had it up now for several months and have had zero problems with the device. Only complaint is, the night vision isn't the greatest unless the spotlight is on. But still no problems at all with the night vision.