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Contributor I
August 24, 2025
Answered

connecting to WiFi

My old Sonos play 3 won’t connect to my WiFi anymore without a intranet cable, they work once connected but when I unplug they stop working, any advice?

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Airgetlam
AirgetlamAnswer
August 24, 2025

Without answers to ​@AjTrek1 ‘s questions, it’s hard to give advice. If you’ve changed networks, then you probably should read the new router - installation instructions FAQ, which also applies to ‘new’ SSIDs. 

Not quite sure what ‘reset’ really means in this context.

I’m assuming when you say ‘Beam & Sin’, you mean ‘Beam & Sub’. If so, it may be just as simple as performing a factory reset on both the PLAY:3s, and then adding them back to your existing Beam & Sub.

For what it is worth, my PLAY:3s continue to work fine, I was listening to them today, using S2 and iHeart Radio, on my WiFi signal. 

Bruce

14 replies

Mr. T
August 24, 2025

These Play 3’ are over 10 years old, idk if they have been designed for both, all my other Sonos systems are connected, so the WiFi is coming up no issue, I just can’t add the ole Play 3s

The link I provided confirms they work on both 2.4GHz and 5GHz so your router’s WiFi security settings are likely the issue here.

Edit: If your router is set to WPA3 then the Play:3 will be unable to connect as they do not support that level of security.

LakeiAuthor
Contributor I
August 24, 2025

I think you are right something to do with the modem settings 

Stanley_4
Grand Maestro
August 24, 2025

Most new gear has backward compatibility options available, sometimes well buried and hard to find.

Sometimes new stuff, like Airtime Fairness is glitchy and needs turned off when connecting older hardware to new kit.

LakeiAuthor
Contributor I
August 28, 2025

Yes, like I said, it’s a techy issue, idk why the Sonos Play 3 (ole gen) works with one modem and not the exact other modem, it is picky, & frustrating, I would have thought others had a qik fix..other than turn off and on the modem..it would be good if Sonos had a physical reset button, rather than push down two buttons it’s so archaic IMHO