Your post is confusing to me. You talk about updating the WiFi by connecting with an Ethernet cable, which is certainly recommended, but then your post switches to ‘add a speaker’, which is involved in setting up a new system, and not part of updating the WiFi network on the speakers.

Can you please supply more detail, so that we can understand what you’re trying to do, the current state of your speakers, as well as which Sonos OS (app) you’re using?

If you followed the Sonos “New Router” instructions and things went wrong you’d best try calling Sonos Support and see if they can see your issue.

To clarify, the two Play 1 speakers were set up years ago under an older wifi network. I have not used them for several years. On the Sonos app, I could open it and see that I had two speakers, one in the bedroom and one on the patio. I could select both or just one to play music. It was perfect. 

Now, I have a new wifi network, got those speakers out again, and thought I could just update the network. I hooked up the ethernet to both the speakers and it was great. It recognized them both. Then I unhooked the ethernet and took one to the patio. It recognized it, said it could update each one, but one at a time. I used a “Sonos network” to set it up, it asked me to do the sound check, and then asked me to update the wifi network, which I did. Now looking at the app, I had one Play1 on the patio to play music from the app. 

Next I tried the same thing with the other Play1 speaker. Nothing worked … it did not recognize it. I unplugged the router, plugged it back in, plugged in the ethernet to router and speaker, and right away it recognized it. So now both speakers work.

New problem. They are NOT on the same system. One is on my Lani's Sonos System, and one is on : “Sonos System.” I cannot see the two rooms together on the app to choose to hear only one speaker or both. Before I call customer support, does anyone have a simple answer? 

It seems you’ve set them up as two separate systems. Pick the one you don’t want to keep, and factory reset it. Then use the ‘add a device’ function on the system you want to keep, so that both are on the same ‘system’ (House Hold).

Thank you Airgetiam. I was afraid to reset cuz some people say it can make things worse. But I did it anyway, and YES! I could easily add the second speaker to the system and once again I have a choice of playing music in the living room or on the patio or both. Can’t believe I spent so much time trying to figure it all out on my own. I am very grateful for your advice...Mahalo!!

More trouble. I removed the Ethernet connected to the patio speaker and it continued to work when plugged in outside via WiFi. When I removed the living groom speaker from the Ethernet connection it stopped. When I used the app to update the network, it could not find my speaker and said to reset. Grrr. So I guess I can leave it on the Ethernet or go thru another factory reset…crazy!

While both are showing up, submit a system diagnostic , and call Sonos Support to discuss it. But don’t post the resulting diagnostic number here, they get sensitive about GDPR.

There may be information included in the diagnostic that will help Sonos pinpoint the issue and help you find a solution.

Oh, one more thing, just in case. While both are showing up, check to make sure the radio / WiFi hasn’t been turned off on either of them. That would certainly cause the issue you’re seeing, as would too much distance, or some sort of wifi interference . WiFi is good, but it isn’t magical ;)

I now have both speakers on wifi. I checked in with Sonos support, but really it was just disconnecting the ethernet and pushing the on and off button and there it was...working on wifi. What a journey!

Thanks again, Bruce, for all your help!