Me too! I've disabled USB selective suspend in Control Panel, Power Options, Hi-performance plan, advanced settings. I've disabled power saving in Device Manager, USB (various). If I don't use transmit for a while the audio goes to my speakers rather than the codec.
Any helpful suggestions? M0PTB
Hi Pete,
do you have an HDMI monitor? Does the problem go away if you disable the energy saving on the HDMI monitor?