Appendix A Troubleshooting and
10.
Motion detection function does not work
Possible reasons:
•
Period setup is not correct
•
Motion detection zone setup is not correct
•
Sensitivity is too low
•
For some versions, there is a hardware limitation
11.
Cannot log in
Possible reasons:
•
The ActiveX control has been disabled
•
Display card driver needs to be upgraded to dx8.1 or higher
•
Network connection error
•
Network setup error
•
Password or User Name is invalid
•
Client end is not compatible with the DVR program
12.
There is a mosaic pattern on the screen—no video when viewing live video or playback file
Possible reasons:
•
Poor network quality
•
Client end resources are limited
•
There is a multicast group setup on the DVR. This mode can result in a mosaic screen.
Usually this mode is not recommended.
•
There is a Privacy Mask or channel protection setup
•
Current user has no right to monitor
•
DVR local video output quality is of poor quality
13.
Network connection is not stable
Possible reasons:
•
Network is not stable
•
IP address conflict
•
MAC address conflict
•
PC or DVR network card is damaged
14.
Burner error /USB back error
Possible reasons:
•
Burner and DVR are on the same data cable
•
System uses too many CPU resources.—Stop recording first, and then begin the backup.
•
Data amount exceeds the backup device capacity. It may result in burner error.
•
Backup device is not compatible
•
Backup device is damaged
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