Thanks guys for the quick responses but I believed I've done all these things. To review:

I've typed the speakers as Type 1 with the right speaker as the master. When I Power OFF/ON + MSR 0 the speakers display:

Right speaker: Type 1, R.M.RJ45
Left speaker: Type 1, L.S.RJ45

There is nothing labeled "Master SL" on the back of the 818, but the instructions say to use the upper socket (which I am using)

So the SL wiring is:

Upper SL connector on back of 818v2 -> Right speaker input. Right speaker output -> Left speaker input.

I've tried both the right speaker and the 818 as the master controller.

I'm using brand new CAT7 cables with RJ45 connectors, but I've tried CAT5 as well.

Am I missing anything?


Main System: MD600 & Sonos Connect -> 818v2 -> DSP5200SE+DSW SUB
Alternate Main System: Sonos Connect AMP -> Dynaudio Contour 1.3 SE speakers + Sonos SUB
Kitchen: Sonos Play:1
Bathroom: Sonos Play:1
Bedroom: Sonos Play:3