Also...did you do a recent update on the Marantz? I hada Marantz 7004 streamer, and it was buggy as all get up. If you did a recent Marantz update and the problem started then, I would try to contact with Marantz (if you thought Apple support was bad...). If you haven't done a recent update, then I would do so. I am assuming that the Masrantz has an Ethernet or wi fi connection