Motion Detection Inoperable on Front Door & Garage (2 of 4 cameras)

[gljohn0]

Odd.  My front door and garage cameras do not trigger for motion detection (mode is armed).  I can have it manually record with no issue.  This is two of four cameras.  The front door camera remains the closest (approx 20') from the base station and the garage camera is further, but both of them have full wifi signal and full battery.  

Tried restarting the base station and my Android phone, but the problem still exists.  App & cameras worked well for the past week.  Earlier this month was the Android app issue (took over a week to fix with new software version) and now this . . . What good is a camera setup if it doesn't detect motion???

[gljohn0]

Update:  the garage back door has triggered & now works.  However, the front door still does not work UNLESS I grab a chair andphysically touch the camera (it's about 7 1/2 feet up in the air).

[gljohn0]

Update:  working normal.  Cleaned the front of the camera (it's relatively new) and upped the sensitivity.  Case closed (for now).