Thanks for your help! Setting up the NVR via a connected monitor put me in the right direction. One of the main issues that i did not enter the preferred DNS server (8.8.8.8) and therefore in 'platform access' the NVR appeared offline. Now I can playback files directly from the NVR which is fine for me at the moment. Also using Hik-connect to playback recorded files which works as well.
However, not using iVMS4200, still says no record files found. I guess this software is buggy for Mac