I've checked the small LEDs on the ethernet port at the rear of the MD600. The right-hand one is an orange colour and is flickering which I believe shows there is data activity meaning the MD600 is attempting to talk to the router. The left-hand green one illuminates briefly when the MD600 is first turned on but then goes out. I think this means there is no established connection. I suppose it is possible there has been a failure of something within the MD600 coincidental with me unplugging the ethernet cable from the MS600, but this does seem unlikely.

I have tried briefly disabling my antivirus software and firewall whilst reinstalling Control:PC but again no success. J.

Control:PC, MS600 & MD600, Audio Note M5 pre-amp, Conquest power amps, Magnum Dynalab MD108 tuner, Duevel Bella Luna speakers. Approx 2000 albums on Sooloos - wide range of genres.