Sorry to hear about your problems. You have such a great system. I am a big advocate of Aurender. I highly recommend you switch. With Aurender I just plugged my two Aurenders into my wall wart extenders… logged on to it with my iPad. No glitches, hiccups or difficulty at all. This is why you buy a separate streamer. Just like a preamp or Phonostage.
PM me if you want to talk offline. This kind of frustration should be left to the computer world. I just turn on my streamer… choose an album and listen… like my vinyl, or a CD. With the same fidelity.