No video (no playback) on gui interface

normel

Getting the hang of it
Dec 1, 2014
304
24
I have this strange issue in which i can not see playback on the monitor.

However the harddisk is seen. Time and date are correct. On both mobile and pc i can playback.

4x 2387g2p pano cam
5x 2087 bullet connected to it

I have tried rebooting.
Tried factory reset
Tried different resolution and monitor
No succes

Device: 7616ni i2 /16p
Firmware_V4.61.030_240123 which is latest

Formatting hdd is my last option to try