Can't connect speakers to Wi-Fi

As you have discovered, Factory Reset rarely resolves fundamental issues and results in a lot of extra work. It also trashes diagnostic data that SONOS support could have used to discover the fundamental issue.

When you say “After moving speakers” was this a simple relocation within your home, or to a new location?

We cannot rule out a hardware failure, possibly the WiFi card in the PLAY:5.

Thanks for the reply.  This was a small relocation in my home.  I wonder if there were Network changes in the past that didn’t cause problems in maintaining my connections but have now made it impossible to reconnect?

It might be a wifi interference problem? Or a wifi settings issue? What network/wifi setup do you use use?

Hmm...we have “PureFibre” 250 Mbps download; 300 Mbps upload.  If it is a wifi problem, would it only arise when I try and move speakers?  (We changed our wifi last October, but my Sonos setup worked fine until two days ago when I unplugged and tried to move speakers.)

Thanks!

Internet speed isn't a factor unless you are still using something very slow.

Speed and other issues are almost always local issues.

Location of the speaker might be a factor. Just as a test, how do they connect if you put them back in the original positions? What if you move them, say, half a metre from your preferred new locations? If it’s a mesh network, what if you move a node? 

UPDATE - Thanks for everyone’s advice.  I connected Play 5 directly to the router using an ethernet cable.  Then I connected to my turntable using “line-in.”  Under these conditions, my system (including two Play 1 spkrs. and two Era 100 spkrs.) is working great.

HOWEVER, it only works with my turntable.  When I attempt to play a song via a streaming service, all looks good in the app, but the play icon just spins, never actually playing a song.

When you connected the Play 5 you actually created the SonosNet. The Era100’s will ignore the SonosNet. However if they are grouped to the Play 5 they will play along. 

The other question is “do you have your WiFi bands isolated by different SSID’s?” If so you should place all bands on the same SSID.

If that’s necessary you should

1. Unplug all Sonos
2. remove the Play 5 from Ethernet
3. delete the Sonos app
4. perform the maintenance on your router and reboot.
5. Do not factory reset any Sonos
6. connect your device to WiFi.
7. Plug in your Sonos 1 x 1 and let them come back.
8. Do not reconnect the Play 5 to Ethernet.
9. Reinstall the Sonos app
10. select Join an existing system
11. accept all prompts
12. sign-in with your credentials.

Thank you.  I’ll definitely try this when I arrive home in a few hours. 

When you say “perform maintenance on my router” does that mean to place all bands on the same SSID?  I found instructions on the Internet and this seems easy enough to do...is this safe for me to do?  Will it screw up my Internet?  Thanks.

So I assume you have each band named with a different SSID based upon your reply. It’s a relatively simple and safe procedure. Be sure to follow the steps in the order I gave them. If you don’t feel comfortable doing so I suggest you call Sonos Tech Support as they can help. Also if you are using a router supplied by your ISP they can assist with changing the SSID’s to the same for each band.

Thanks again...I’ll follow your advice.

Different SSIDs for each band used to be a way to avoid issues some buggy gear had with more than one band available. Hopefully that is in the past as today we'd need three, 2.4, 5 and 6 gHz SSIDs to deal with it.

It’s relatively easy to move the PLAY:1 and wire it to the network. Try this because it will work around a defective PLAY:5 wireless card.

Another possibility is that the WiFi has been configured to keep the 2.4 and 5GHz bands “isolated” (separate). Each SONOS unit will decide which connection is “best”. If some units are on 2.4 and other are on 5GHz they won’t be able to communicate with each other or the controller if either is on the ‘other’ WiFi band. I don’t know why this would suddenly change, but anything is possible. Maybe there was a PureFiber update. This would have been a very bad idea, causing a flood of support calls. If you factory reset the router, the band sharing may have been altered.