Maybe see if this Sonos support link ‘might’ assist you to resolve the matter - treat the router as though it was a new/reset router and that you perhaps need to add the network credentials again to your products…

https://support.sonos.com/en-us/article/connect-sonos-to-a-new-router-or-wi-fi-network

Also ensure your Sonos mobile controller device meets these system requirements…

https://support.sonos.com/en-us/article/sonos-app-requirements

If the issues persist then I suggest perhaps contacting Sonos customer support via this link:

https://support.sonos.com/s/contact

There’s no first or second generation Play 1. There’s the Play 1 and the One (SL) that comes in two generations, the last of which has bluetooth for set up. Since you mention Alexa, you must have Play 1 and One (Gen 1), that can only be connected to a new network if you reset them, see the first link Ken mentioned.

Hello,

Some improvement

I did a factory reset for the old Sonos Play 1 (without Alexa).

The Sonos App 1 find it, but tells me to run Sonos App 2

The Sonos App 2 (actual) keeps telling me to give the credentials in the parameters...I finally managed to find it (not easy with Samsung S23 Android).

Sonos APp installed it fine. I unplugged / plugged the speaker...not seen by SOnos.

It keeps asking to add a speaker...but doesn”t find the network !!

I’d perhaps give Sonos customer support a call. See link in my earlier post.

I tried again...Now it find a BEAM speaker...while I don’t have one !

Really Sonos is too bad since 1 year. Application horrible, and now can’t connect.

Not sure I will contact the support, if they are as bad as this app

I guess if you choose to not seek the help of Sonos Support, then you’ll never know what the issue is.

It might be a simple mDN/SSDP ‘device discovery’ issue over the subnet involving a misconfigured router/switch setting, or perhaps 3rd-party security software such as VPN/Firewall or other App. It could even be a hardware issue and the diagnostic tools that the support staff have, might just save you a lot of wasted time, but it’s really a matter for you what road you prefer to go down.

Hello. I contacted Sonos support. I have to check something on my router. wIll do this week-end to see if I can fix everything.

Hello. I didn’t do anything else...and suddenly one of the speakers is working again ! I tried again with the old one...it’s now connected and working, but on a different network, i dont’ know why.

So new issue : how to connect both on the same network ?

I have SYST 1 and SYST 2.

ANy one had this issue before ?

Thanks

It sounds like you created two separate Sonos systems, referred to as ‘Sonos Households’ and added the speakers as a ‘room’ to each household. Only way to resolve that, if it is the case, is to first select a system, SYST 1 for example …and then simply ‘factory reset’ the speaker(s)/product(s) in the other system, SYST 2.

Then fully close/reopen the App and show SYST 1 devices only and now use Add Product (Speaker or Component)’ in the App settings to add your factory reset speaker(s) to that original system instead.

I hope that info. is clear enough for you to follow and that it resolves your issue.

Hello,

thanks for your last advice. I juste tried it, and it’s (finally) OK on both speakers. I can now manage them together or separetely.

I will never understand why SOno lost both speakers, and “found” them agian 10 days after.

thanks again to hyou and SOnos Support

TIlion