Hi Steve,

I thought I had done that but it does not seem to be storing so both seem to keep becoming left master RJ45.

Process I am following is:

Power up with 1 help on remote
Adjust the right speaker to be R S RJ45
Power off
Power back on with 1 held down and it is still showing LM RJ45

Is that the correct process? Checking again they both seem to become LM RJ45, so am I not saving the configuration?

DSP5200SL, 218, with Sonos. Rest of home Loxone multi room audio with Monitor Audio speakers