If your 5ghz and 2.4 ghz networks are the same name, try renaming the 2.4 and connecting your Sonos devices to that. 

The last thing you should do is to reset your speakers. You lose everything when you do that.

A very simple solution would have been to reuse the SSID and password from your old router on the new router. Many of your devices would have automatically reconnected, but some may have just needed a restart.

Now I would suggest hardwiring a speaker to your router to see if the app recognizes it. if it does, continue setting up the rest of your speakers while its still connected.

Thank you for the response. I did reused the same SSID and password and it didn't work, hence I resetted the speakers.

I can see all speakers, but when I when I try to add I'm getting stuck on the "Wi-Fi and password error screen" every time.

I have connected the Lan cable directly from the router to the speaker and still I'm getting the same error.

Surely there should be a solution to this?

I’m having the same issue doing a fresh new installation of a Sonos Move

Make sure you're typing the SSID and password correctly. Such as caplocks being on when it shouldn't be. Exclamaton point (!) being typed instead of the number one (1). Capital letter "I" being confused with a lower case letter L (l). Just a few things things to check. 

I have managed to get my setup sorted just now after resetted my my speakers for the 100th time since Friday.

I logged out of my sonos app and uninstall it. Logged out of my Wi-Fi, and switched off my phone device and left it off for about 5 minutes.

Switched it on and reinstalled the Sonos app, logged in and select setup a new system, switched on my speakers one at a time, and used an ethernet for connection.

I don't how it worked cause I tried all these solutions in the past 3 days.

Thanks,@Stormy Norman i just did the same thing, and finally got the Sonos Move connected. I believe there’s some sort of bug that gets fixed (or removed) by uninstalling the app.

Thanks!

@luisc009, I'm glad you are also sorted.

Just bought a new router with seemingly space-age futuristic tech, and I’ve been struggling for days to get my Sonos Move onto the new network. Tried the steps above, but didn’t work for me. Note also that I have moved all computers, multimedia, tech, household gadgets, and appliances to the new router with zero issues.

My clunky old router had both frequencies on the same SSID and this never caused a problem.

For my setup, it appears the main issue for me was having the “authentication method” set at “WPA2/WPA3-Personal”. Apparently this confuses Move for initial setups, despite the fact that Move 2 supports WPA3-personal.

What I did:

• switched WiFi band from “2.4GHz / 5GHz / 6GHz” to only “2.4GHz / 5GHz” (with same SSID)… note that I had already manually set the “Channel bandwidth” for each channel in order to avoid potential broadcast conflicts.
• disabled WiFi7
• set “authentication method” to “WPA2-Personal” only.

Sonos people : Please fix setup issues. Users should not have to go through this mess when simply changing a network, especially for the “Move” system that is supposed to be able to… move. Users should also not have to be “afraid” of changing their network settings… this is such a painful process that I’ve had to go through already twice for all my systems. And now I’m afraid to touch anything!

I spent 90min with a fabulous support guy who was online middle of the night for him. Shout out to Sonos support because I can honestly say that their support teams are very dedicated and motivated - they do their utmost best to find the root cause of the problem.

Update : After I set up my Move with the settings above, I reset “authentication method” back to “WPA2/WPA3-Personal” (as it was before) and so far it seems to be working fine.

Thank you @Stormy Norman same problem and was getting very frustrated with the same error msg - your help and direction to uninstall the app fixed it. Thank you! Many hours now saved and once app reinstalled all working perfectly 

For other user also experiencing the same issue, the Sonos One SL also needed a software update but this does not trigger until app uninstalled and reinstalled so another reason my devices were not connecting 

Thanks, ​@Stormy Norman 

I had the exact same situation as you: changed the router, couldn’t update the ROAM settings to the new WiFi. It was driving me crazy!

Your method worked like a charm 

The only thing i did differently was that there’s no need to restart your phone - just turn flight mode on, then off, as it restarts all connections on the phone (same thing if you ever find yourself having network problems).

Just ran into this with the Android app. Worked fine for the beam but even that actually never really connected but at least it accepted the password and tried and then timed out. But then the sub mini just didn't accept the password and got the same exact screen that you got. If you look at the reviews for the Android app right now on the Play store, you will see that the last 20 of them are all one and two stars. There's something seriously F'd with the app right now. 

I restarted the phone. Restarted the entire Google mesh Wi-Fi network. Even tried connecting with the ethernet cable. Even factory reset both the beam and the sub mini. Did all the things. And still get the same message you got above. The error message is incorrect. There's nothing wrong with the password but whoever programmed it put the wrong error message there.

We are going to be returning these devices to Best buy. The weird thing is is that when we first got them a couple months ago the setup worked fine and they both connected and then all of a sudden the sub stopped working. And then we just went to reset everything up and now I can't set any of it up. It's all broken.

I’m trying to downgrade all of my Sonos speakers to S1 as a last resort before I just throw it all in the nearest skip. Plucked an S1 out to test the downgrade process - reset it and plugged it straight into the back of the router. I cannot get past the stupid Wi-Fi error no matter what I try.

I’m going to give things one last attempt (I have one more Wi-Fi trick up my sleeve involving an old wireless access point and an ethernet hub) to see how that goes. Since May, Sonos are pretty much a swearword in my household - it’s like playing roulette to see if they will even get picked up by the app, let alone play anything or have some semblance of usability with the app. The list of issues I have with the software must be a mile long. Bose speakers are looking more attractive by the day. I swear I will never go back to Sonos.