S1 S2

@sjw, 

An S1 only device is also needed to create a new S1 Household, it can’t be done with a device that is also compatible with S2.

Do you have BOOST or BRIDGE? I think that the safest way to proceed is to power down all of your SONOS units except one, wire this to the router and, attempt to operate the system. If this unit operates on your S1 controller, power up a second unit (wired or wireless) and it should join the system. If this first or second second unit drags you through this S1/S2 stall, power it down and move on to another unit. Eventually, you should end up with an operating system, and one or more units that balked at S1.

As you work through the units, it would be prudent to keep good notes and submit a diagnostic after the first success and after each failure. The diagnostics will be extremely helpful for SONOS staff to guide you. Unfortunately, you cannot submit diagnostics unless there is at least one working unit.

Let us know the outcome and we can give further guidance. It would be helpful if we know more about your system.

Avoid Factory Reset without further consult.

---

Edit: I’m a slow typist. I see that you’ve already Factory Reset and given some details. Yes, you’ll need to take this Factory Reset player back to the other house and add it to the existing S1 system. Make sure that the S2 controller is uninstalled.

When you return to the condo, this S1 player will be a remote player using the same household as your main system and the player will have access to all of your music services, however, some services, such as SPOTIFY will not simultaneously play at both locations and you may need to fuss with NAS settings, if any. SONOS playlists can create some issues because they are stored in the players, not the controller. Changes made in the playlists at one location will not be reflected at the other location.

That’s why I mentioned needing to return it back to the S1 system (away from the condo) to revert to S1 - where there is an S1 system?

If you have an S2 device (that is S1 compatible) and factory reset it and then add it to an S1 system, it does an ‘Update’ and reverts to S1 - no need for a ‘Downgrade’ option within the App.

👍

I think this has changed with the recent S1 update, as another community user recently had an issue with this… the S1 App would not downgrade his device after a factory reset (Sonos Playbar purchased used from someone who used it on an S2 HH). The user had to use the S1 downgrade tool (in the S2 App) before the S1 system would allow it to be added. I think (suspect) the downgrade option may have been removed from S1 to ‘perhaps’ free up memory and keep the existing services running on S1.

@sjw 

This was the Playbar thread I was referring to above…

I’ll try it now - I’ll reset one of my S1 devices and add it to the S2 Roam.

Then reset it and try to add it back to the S1 system.

I’ve moved devices from S2 to S1 many times (when taking/returning my speakers to family’s S2 systems) - I’ve never even seen the ‘Downgrade’ option in the S1 App  🤣 - just used the process I detailed above.

Will post the results.

@sjw,
This support page was the other thing I noticed, see the ‘new’ instructions here  …

https://support.sonos.com/s/article/5097

Condo is in entirely different location. Condo has a play one speaker that is S1 and S2 compatible. House has multiple units that are not S2 compatible. It looks like I have to download S2 app in order to downgrade my play one at the condo. I keep seeing instructions to reset my device but I don’t know how to do that.

OK just found reset instructions