VDH-NK160
Hardware Manual
11
6. Wrong user/password
7. Wrong client software for the NVR firmware
Q 13.
Mosaic or no video when Network preview and file playback
A : The possible causes:
1. Network traffic jam
2. Bandwidth limitation in the NVR side
3. Group mode is used in the NVR networking setting. More mosaics in
group mode, not recommended.
4. Masks or channel protection in NVR side
5. No rights for the user account
6. Bad NVR output
Q 14.
Networking not stable
A : The possible causes:
1. Networking not stable
2. IP conflict
3. MAC conflict
4. LAN card error (PC/NVR)
Q 15.
USB backup error
A : The possible causes:
1. CPU too busy to back up the data! Stop recording then backup!
2. Device not compatible
3. Backup device error
Q 16.
NVR cannot be controlled by the keyboard
A : The possible causes:
1. NVR has wrong port setting
2. Wrong address
3. Low power for use; each adaptor need to be powered.
4. Transmission distance is too far
Q 17.
Alarms cannot be stopped