Only works with Ethernet

I also own a pair of Sonos Play:1 speakers. Recently, I changed my wifi router and wanted to reassign the speakers to the new router. It was a VERY frustrating process, taking over an hour because their online instructions were not conclusive. If this helps anyone else, this is what worked for me:

1) Follow the instructions on https://sonos.custhelp.com/app/answers/detail/a_id/1072/kw/change%20wifi%20router#setup for Speaker 1.

2) After successfully connecting Speaker 1, unplug the Ethernet cable that you used during Step 1 (Ethernet cable should be connected to new router). Play some music to ensure Speaker 1 is working without the Ethernet cable.

3) Connect Speaker 2 to Ethernet. Unplug both speakers. wait a couple of secs, and plug them back in. Both should blink and then the lights turn white.

4) Try to play some music. You should hear music from both speakers. This is a positive sign!! However, if you unplug Speaker 2 from the Ethernet cable, it will stop working.

5) With Speaker 2 connected via Ethernet cable, go to the Wireless Setup settings. You should be able to enter a password for the wireless settings (just as you had to do for Speaker 1). After doing this, you should be able to unplug your Ethernet cable and it, too, will work using the new wifi router!

Sorry, but this is totally misleading. You do not need to repeat the entry of WiFi details on every single player in the system. For an extensive system of multiple units this would be utterly ridiculous.

Wire one unit to the router. Wait until all the units are visible in a controller. (They will take a few minutes to connect via SonosNet.) Enter the new WiFi credentials at Wireless Setup. They will propagate to all the units. Job done.

The Ethernet cable can then be removed. Again, wait a few minutes while the units switch over to the new WiFi. The system is then ready.

Hi Ratty, I agree that having to connect and enter the wifi password for multiple speakers is time-consuming and ridiculous. However, I don't have a BOOST adapter or Sonosnet. I'm also using a PC, not a smartphone. The instructions I shared are what worked for my two speakers. The other solution, as you mention, is definitely much better if you have the resources that I do not have. There may be better solutions, but I wanted to share what worked for me.

You did have SonosNet. It's set up automatically when you wire any Sonos unit.

And directions for changing the WiFi details from a PC controller are included in the FAQ.

Sorry, but you're simply in error. Lurkers should not be left with the incorrect impression.

Hi
Just wanted to drop a note to say thank you. My sonos was doing this and after much connecting, reconnecting app changing, hair pulling and even thinking it was the wifi providers fault, all it had done was drop the wifi password! D'oh!!

Thanks for the help x

I was as frustrated as some of you, and surprised with the support as some of you too. Found how to fix the problem. Without going step by step in detail what I can say is that once you have your speakers playing while is connected to the local Ethernet (cable) in the Sonos App GoTo Settings > Advanced Settings > Wireless Setup. Took me 4 hours to find out this fixes the issue. I had to do the same for each of the speakers and then all of them were working OK.

EXTRA: Speakers won't start playing immediately, you gotto Group them or select them in the Music section, this is in the main Album / song selection, on the very top of the screen (ROOMS).

Hope this works for everyone. Viva Mexico!

THIS WAS A GIGANTIC HELP TO ME

HOW THE HECK WAS I SUPPOSED TO KNOW THIS WITHOUT TEAM MEXICO HELPING ME w/ THE ABOVE ???

SONOS --- honestly --- you support is garbage and I am sure that you know it.

Thanks Zeerylo - I'm savvy and had Sonos working for two years until I switched routers than pure mayhem. Worked, then inexplicably did not and tried everything unsuccessfully to reconnect. You had the missing clue and it fixed all!

HOW THE HECK WAS I SUPPOSED TO KNOW THIS WITHOUT TEAM MEXICO HELPING ME w/ THE ABOVE ???

SONOS --- honestly --- you support is garbage and I am sure that you know it.
Yes this was difficult to find. You would have had to go on to the Sonos Support home page and searched for 'boost to standard'. Or done a general Google of 'Sonos boost to standard'.
Either would throw up this page
https://sonos.custhelp.com/app/answers/detail/a_id/3319/~/switching-your-system-between-a-standard-and-boost-setup
For a wider picture you could search for 'change router', and get this:
https://sonos.custhelp.com/app/answers/detail/a_id/1072/kw/change%20router#setup

Both links are listed if you search Sonos Support for 'disconnect Ethernet'.

I'm sure Sonos would appreciate your thoughts on how they could make this information easier to find.

"If all else fails, read the instructions"

And incidentally it should not be necessary to do the wireless setup for each speaker, as was suggested by @Zerrlyo. Powering the others off and on should be the most that is needed, once the first is up and running.

Yup once the main speaker was up the other fell in line! I DID "read the instructions" but it was not easy to find on SONOS help...I followed all of their suggestions for fails and nothing revealed that solution, nwstf it might be available if you know where and what to search for!