Ah, ok! I found something about this on the DVS FAQ page: “macOS: DVS Clock Sync Locked / Unlocked” and the computers were Macs. I didn’t understand if the software should get me an error message if this happens so that I can be shure that this is the reason or not… On the other hand Audinate says, that this should not impact the audio!? Does anybody had this issue with really noticeable clicks? Or is there another way to handle this problem (I already used an external Network port at least on one of the computers) which is not mentioned in this DVS FAQ article?