Geovision Gv-Mfd130 Issue With Dahua NVR?

I have 30 or so of these gv-mfd130, I was attempting to get the working on another NVR but no luck. I tried them on a dahua unit on port 80,554,37777 etc pass set at admin admin all ok. Other cameras work on this nvr. The setting show vss setting I assume this is it other one above this is 80 and bottom setting 10000. I tried various.It works fine on pc and on its own system.

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