Hello.  Thanks in large part to the support from these forums my system has been working just fine since I installed it and worked out the kinks.  That’s about 1.7 years.  

Today one of my sub-woofers just randomly started dropping out.   I’ve long ago assigned IP addresses to everything in the network so it’s not that.  I decided to look at the “about my system.”

In my set-up, I have around 19 speakers with many (not all) of the devices connected by ethernet.  Some speakers are paired as part of a left/right stereo speaker and some are paired with a sub-woofer.

Every speaker in my system shows as WM:0.  I don’t have any WM:1 or WM:2.   I don’t understand that?  If one of the speakers is not connected by ethernet, should that be WM:1?  Or do I misunderstand how that works?

In my case, the Kitchen Amp may be connected by ethernet but the sub-woofer is not, so I’m not sure if that’s WM1, 2 or 3. 

I’ve attached my Network Matrix just in case anyone needs to see that.

I’d like to make sure there is not something here that is causing the sub-woofer to drop out for some reason. Would like to make sure I understand the WM issue as I’m confused by what I’ve read versus my system.  Thank you!

One edit after I posted:  I found another thread here that says WM:0 can also mean it is connected to an ethernet-connected unit using SonosNet, so maybe that’s why some of my devices show as WM:0 though not connected by ethernet.  But shouldn’t some still be WM:3?  Or does that mean not using SonosNet?  I don’t think any of mine are using  the house Wifi, so all ethernet or SonosNet, if I understand all this correctly.  Thank you!