61
No image or having mosaic effect when preview network image
or playback video files
Possible reasons:
%
Network speed is inconsistent or too slow.
%
The logged in user has no surveillance authority.
%
The device has no video output. Camera disconnected.
Something wrong with the USB backup.
Possible reasons:
%
The CPU is busy please stop recording and then go on backup.
%
The data volume exceeds the backup storage capacity and it will cause
burning errors
%
The backup device is not compatible.
%
The backup device is damaged.
Alerts is not working.
Possible reasons:
%
The setting of the alert is not correct.