switching to cellular and back to wifi over an over

Yesterday at a given time the system switched to "Cellular backup" and stayed there all day. I tried to reconnect to my wifi and it wouldn't reconnect to my wifi. Wifi was working fine. Then today, the system automactically switched from Cellular Backup (of which it was all day and all night) to wifi connection. About 15 minutes later the system switched back to cellular backup and then several minutes later it switched back to wifi connection which is where it is now. Is this a problem on my end or Ring's end? Not sure how to troubleshoot this.