Motion Sensor Not Responding

@stephenvicki, when you say alert do you mean a text, email or push notice? Or its not responding to the base? Is it in the timeline? A bit more information please.

Dup.

Got a text that said it was not responding. The app says it is offline. Just purchased the system last month. Have pressed the button on top of the motion detector & still shows offline.

@stephenvicki, thanks for the additional information. SS3, pulse feature telling you the system is not picking up the motion sensor. Got it.

Easiest way to recover it quickly is to remove the motion sensor from the system and add it back in. Then after you confirm it is connected again, time to troubleshoot.  Electrical interference, whether from another radio source, distance or metal.

I am surprised as SS3 range is been excellent in my experience and I have sensors now much further than my SS2.

If you don't come across something, you may just want to wait to see if happens again, and if so, call SS to troubleshoot or replace it.

removing & re adding worked, thank you!!

In the future, since the "sensor not responding" message is so darned vague, you can do the following:

1.  change the battery.
2.  move the sensor closer to the base station if possible.
3.  make sure it isn't too close to interference such as wiring, appliances, your router, etc.
4.  as Captain suggested, if above fail to resolve, remove the sensor from the system, then re-add it, then user-initiated test to ensure it's working properly.  
5.  last ditch effort, call SS and request new sensor (if within 3-yr warranty period).