Motion Sensor won't connect to network

Last night my garage motion sensor decided to start triggering though nothing was in the garage. Today, in my quest to trouble shoot, I attempted to remove from my app and do a factory reset of the device. I've done this several times. Scan the code, get the alert to pull the tab. I reset the device and have followed that protocol, but it will not connect.Does anyone have any recommendations for next steps?Thanks.