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3
The sensitivity is too low.
4
Limited by some hardware edition.
13
、
I can not login via web or CM S.
Possible reasons are as followed:
1
The system is windows 98 or win me. We recommend updating to windows 2000sp4 or
higher Version or installing the software for low edition.
2
ActiveX is hold back.
3
The version is not exceeded dx8.1. Update the display card driver.
4
Network connection failure.
5
Network setting issues.
6
Invalid password or user name.
7
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 are as followed:
1
Network is not stable.
2
The user machine is resource limited.
3
Choose the play-in-team mode in the network setup of DVR.
4
The region shelter or channel protection is set.
5
The user has no surveillance purview.
6
The real-time image of the hard disk recording machine itself is not clear.
15
、
Network connection is not stable.
Possible reasons are as followed:
1
Network is not stable.
2
IP address is conflicted.
3
MAC address is conflicted.
4
The net card of the DVR is bad.
16
、
There is something wrong with the USB backup or writing a CD.
Possible reasons are as followed:
1
The rewritable machine and the hard disk are shared the same data lines.
