Motion detection on continuously with no dection

[RQUEST]

The camera has worked flawlessly for a year. Now the amber motion detection light is lit and will not go off. Since it began, it does not report motion, but the camera works otherwise. I removed the app and re-installed, reset the base, and removed the camera battery and re-installed. 

[TomMac]

Test if able on the web with browser at   my.arlo.com

Create a new custom mode for that camera in case the original mode is glitched... test

OR

If NG above, remove all the cameras, reboot & reset base and set up as if new

( reset is hold reset for 10 secs till led(s)flash )