Sonos Amp and Sonos Sub, Sub stops playing after being paired and doesn't show in the Sonos App

You could try wiring both to Ethernet.

Hi, thanks for the reply.  They were both hardwired at one point.  In a perfect set up, I’d like to have everything hardwired and have Wi-Fi turned off totally, but in trying to get to that state I ran into a problem where turning Wi-Fi off on my Sub would turn Wi-Fi on, on my Garage Connect and vice versa.  I could never get Wi-Fi turned off on both at the same time.  I called Tech Support and they told me my Amp was causing a network loop, but no explanation of why or how.  Their direction was to keep only my Arc hard-wired and leave the rest wireless.  That worked for a day, then my Sub in the Kitchen (that pairs to the Amp) stopped working.  So here I am…

Also, to add to that, I thought that even if both were hardwired, Sub’s pair to the player they are working with via Wi-Fi, but not your home Wi-Fi, a dedicated Sonos Wi-Fi that is used for pairing surrounds, subs, etc.

​@Stanley_4 is correct as a possible solution. Note that subs and surrounds bonded to amp, speakers or soundbars communicate over a hidden 5Ghz channel. 5Ghz is very fast compared to 2.4Ghz; but is short distance and has very little wall penetration compared to the former. That’s why bonded devices are best placed in the same room with the primary device.

There is no good reason to disable the internal radio, what the disable wifi actually does, except in dense rack mounting of multiple Sonos devices.

Do you have smart / managed switches? There is a good bit of discussion here on setting them up to work with Sonos.

I do, I run Ubiquiti in my house. Their guidance is to either go all wired or all wireless. And if you go wired to turn off the wireless on the Sonos decides to prevent network loops, as well as setting the STP priorities which I have. 

There are some ubiquity topics here that are good.

Also try this link

https://github.com/IngmarStein/unifi-sonos-doc

Thanks for the links. I'll check them out. I guess in short I'm asking if an Amp and Sub can be "paired" and not have Wifi enabled at all if they are both hardwired. I've seen posts on Reddit saying as such and I could swear that is how I had everything until I started adding Play 1's. But would like to get a solid answer before I pull my hair out messing with network settings. 

I guess I can start by powering everything off except the two, wiring them up and see what happens. 

An Amp can not be ‘bonded’ ( see Sonos terminology thread.) with a Sonos Sub because Sonos has no idea where the cutoff should be, as it doesn’t ‘know’ what speakers are wired to the Amp’s speaker posts. And they don’t have anywhere in their software to ‘set’ such a cutoff. 

You can, however, drive a third party Sub with the Amp’s line level sub output, as long as the Amp is not in surround driver mode. 

Huh, apparently this is different than before, with the newer Subs and Amps (likely the mini Sub, and the gen 4 Sub, along with the Amp), here’s the data on the sales page for the Gen 4 Sub;

• Sub 4 is not compatible with Play:1, Play:3, Play:5 (Gen 2), Connect:Amp, SYMFONISK Bookshelf (Gen 1), or SYMFONISK Table lamp (Gen 1).
• All Sub products are not compatible with Move products, Roam products, Port, ZP80, ZP90, Connect, or Connect:Amp (Gen 1).

So, I’d likely call Sonos Support to discuss it.

When you speak directly to the Support staff, they have tools at their disposal that will allow them to give you advice specific to your network and Sonos system.