Ring Cam notifies of motion but does not display video

Wired stick up cam shows “offline” on video display screen. However, it still sends notifications of motion when motion is detected. Cam is directly next to the WiFi router. We have a wireless peephole cam which works flawlessly on the same WiFi network, at an even greater distance than the stick up cam. Have tried factory resetting, setup multiple times with same result.Please help me!