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14. There is only mosaic no video when preview or playback video file remotely.
These are the possiblilities:
Network fluency is not good.
Client-end resources are limit.
There is multiple-cast group setup in DVR. This mode can result in mosaic. Usually we do
not recommend this mode.
There is privacy mask or channel protection setup.
Current user has no right to monitor.
DVR local video output quality is not good.
15. Network connection is not stable.
These are the possiblilities:
Network is not stable.
IP address conflict.
MAC address conflict.
PC or DVR network card is not good.
16. Burn error /USB back error.
These are the possiblilities:
Burner and DVR are in the same data cable.
System uses too much CPU resources. Please stop record first and then begin backup.
Data amount exceeds backup device capacity. It may result in burner error.
Backup device is not compatible.
Backup device is damaged.
17. Keyboard can not control DVR.
These are the possiblilities:
DVR serial port setup is not correct
Address is not correct
When there are several switchers, power supply is not enough.
Transmission distance is too far.
18. Alarm signal can not been disarmed.
These are the possiblilities:
Alarm setup is not correct.
Alarm output has been opened manually.
Input device error or connection is not correct.
Some program versions may have this problem. Please upgrade your system.