Did the firmware upgrade on 1 of the NVR's. Fixed problem.
On the NVR that is the same as yours I believe.
So from
Device Type Software Version DSP Version
DS-7608NI-I2/8P V4.1.11build 171204 V5.0, build 171115
to the unzipped upgrade file which is called...
My comment "Its done it on 3 different HIK NVR's. " INCORRECT.
All 3 NVR's are a similar age. 1 does not have the problem, and its FIRMWARE is clearly a later version than the other 2. So suspect this is a FIRMWARE issue.
The first NVR I am going to update is the same as yours.
My details...
Did you ever resolve this ?
Struct exact same problem today, With a DS-KH6320-WTE1W with a DS-KD8003-IME1brought just today.
Its done it on 3 different HIK NVR's. They are about 3-4 years old and can give models / firmware etc ...