I have a sensor that is going offline/online every 6 or 8 hours. its for the laundry room door. the door doesn’t move so I don’t think its a distance problem. does it just need a new battery?
Common causes of RF sensors reporting offline and how to troubleshoot are described here:
Battery levels being borderline low is often a contributing factor to general signal issues. Especially if the sensor is a couple years old I would replace the battery to see if that improves the signaling.