Net DVR DVR7004, User Manual, Page: 81 / 83

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Net DVR
07: Why use client manager software to backup data, click on the backup but not respond?
07: Check if firewall is open. Opening a firewall could lead the client program can not backup data from host-side.
08: Why show that backup is successful, but there is no backup data in the list?
08: Host side can not back up the data recorded within 15 minutes. (For example: It is now time 12:00, the video data between 11:45-12:00 can
not be backupped.)
09: Why it displays mosaics when playback?
09: Hard disk errors may also cause mosaics. If it is logic damage, please repartition and reformat the hard drive. If it is physical damage, please
replace a hard drive.
11: Why the images are shaking during live view or playback?
11: Check the format of DVR and cameras system. Make sure they are in same format, PAL or NTSC.
10: Why playback is quite slow?
10: 1. Please check whether you choose the slow playback. Our DVRs support 1 / 2, 1 / 4, 1 / 8, 1 / 16 of the slow-speed. 2. Please check whether
the hard cable is connected well, meanwhile check whether there is a damage to the sector of hard disk. When there is an existence of a bad hard
drive sector, it will appear the phenomenon such as playback pause.
(E)Alarm PTZ control
01: How to connect sensor to the system?
01: Our system supports general sensors, e.g. smoke sensor, IR sensor, and supports normal open and normal close working modes.
you are applying motion detection or alarm record mode, as system only records after the motion or alarm happens and lasts for a specific time
and stops recording. So the recorded files may be not continuous.