I have disconnected the SpeakerLink cable leaving just the two Ethernet connections but now there is no sound at all. I can see from the C15 that something is playing as the timer is counting down on the track. Looking at the device manager on the C15, it is still telling me that there is an IP address conflict, same message as previously reported.

Any further ideas? Thanks a lot

818v8, HD621, 5200SE front, 5200SE centre, 3200 rear, SkyQ