Why do my stick-up cams constantly go offline?

I have had my Ring Stickup cameras with pan/tilt mounts in place for about 6 weeks. I have 4 of them in addition to my Doorbell and a floodlight camera. Twice in that amount of time, the stickup cameras have gone offline, but the doorbell and floodlight have not. When I woke up this morning, I had received emails that the security system was using cellular backup at 4:38 am and was back online about 3 minutes later. I checked the cameras and only the stickup ones were offline. Nothing has changed as far as wifi name/password or anything else so I rebooted the router as indicated by the Ring app. This did not reconnect them. This is exactly what happened the previous time they disconnected about 2 weeks ago. That time, my son was here and he went up on the ladder and we went through the setup process and reconnected them. He is not here this time and I am a 64-year-old disabled person. Getting up on the ladder is not really an option for me. Can anyone tell me why the stickup cameras will not reconnect after the wifi outage or offer any suggestions as to why this keeps happening? I may be able to get some help this time, but this is unacceptable. Ring cannot possibly expect people to be constantly repeating the setup process on cameras that are, as most security cameras are, up high on the outside of the house. Why is it only the stickup cameras and not the doorbell or floodlight camera?