I just received a cs18ai, rml32ai, and rml16ai. I'm trying to cascade these over AVB using the Motu switch but with everything plugged in properly and all firmware updates complete I only see the rml32ai in my dropdown box for mixer control. I do see both mixers in UC surface and I can cascade them there but I never see both on cs18ai HELP HELP HELP - Does all of my cabling have to match and be CAT6 ??