User manual

Page
59
4 Network connection failure.
5 Network setting issues.
6 Invalid password or user name.
7 The CMS is not matched the NVR program version.
13、 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 NVR.
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.
14、 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 NVR is bad.
15、 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.
2 The data is too much. Please stop recording and backup.
3 The data exceeds the backup storage.
4 The backup equipment is not compatible.
5 The backup equipment is damaged.
16、 The keyboard can not control the NVR.
Possible reasons are as followed:
1 The serial port of the NVR is not set correctly.
2 The address is not correct.