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D.
The PTZ setting of the DVR is not correct.
E.
The protocols of the PTZ decoder and the DVR are not matched.
F.
The address of the PTZ decoder and the DVR are not matched.
G.
When multiple decoders are connected, the far port of the PTZ
decoder line A(B) must connect a 120 resistance to reduce the
reflection otherwise the PTZ control is not stable.
H.
The distance is too far.
12.
The motion detect is not working,
Possible reasons:
A.
The time range set is not correct.
B.
The motion detect area set is not correct.
C.
The sensitivity is too low.
D.
Limited by some hardware edition.
13.
I cannot login via web or CMS.
Possible reasons:
A.
The system is Windows 98 or ME. We recommend updating to
windows 2000 SP4 or higher Version or installing the software for low
edition.
B.
ActiveX is not installed or blocked by web browser.
C.
The version DX display driver is not DX8.1 or later. Update the display
card driver.
D.
Network connection failure.
E.
Network setting issues.
F.
Invalid password or user name.
G.
The CMS is not matched the DVR program version.
14.
The image is not clear or there is no image in network preview state
or video file playback state.
Possible reasons: