@navyachts I have no experience with etherRegen. This is what I can say in regard to coax. In early days of streaming ran long ethernet cable from ISP modem to router (my internet service inlet in dedicated listening room). I then experimented with moving modem from opposite side of room to router to same side via extending coax cable. Long coax much preferable to long run of ethernet. Shorter runs of ethernet also allows for much less expenditure for better quality ethernet cable.