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3
The sensitivity is too low.
4
Limited by some hardware edition.
13、
I can not login via web or CMS.
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.
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