N6200-4E won't record video or take snapshtos from this piece of china
http://www.ebay.com/itm/271770949404?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
error messages vary from silence (motion detection mode) to "this channel does not support capture" and "file exists or other caused error".
the camera is set to detect motion over whole image it gets, sensitivity max. nvr is the same.
my guess is that the camera does not match onvif standard.
could there be better guesses?