App doesnt see my Speakers anymore

And when that doesn't work?  What then?  I'm having the same issue and can't find a resolution or get anyone at sonos to help fix it.  

Unfortunately, you haven’t given us any information to give intelligent suggestions to you.

Several things that have worked for others are:

Wiring one Sonos device to the router with an Ethernet cable

Removing mesh nodes, at least temporarily, to help see if it is a mesh network issue

Setting up reserved IP addresses in the router’s DHCP table

And of course, calling in to Sonos Support directly to discuss it.

When you speak directly to the phone folks, they have tools at their disposal that will allow them to give you advice specific to your network and Sonos system.

Thank you for the tips.  I have not tried directly connecting a speaker through ethernet cable.  No one at sonos sugested that and it didn't occur to me to try that.  Ill do so tonight.  Other than that, nothing (that I know of) changed.

You're correct the sonos speakers and the sonos app were working together a few days ago, and the next day the app couldn't see or communicate with any of the speakers. I dont get an error message in the sonos app, it just says "no devices detected". I hadn't made any wifi changes in my phone or router or any software updates to any of the above before the issue started. It's possible the sonos app automatically updated as I have that app set to auto update but that would have been the only possible change that occured.

Sonos service says my speakers are working fine, and that's confirmed with the speakers in my TV room still work even though the sonos app says there are no devices detected. Similarly sonos service says my phone is working perfectly with the wifi router, and also similarly confirmed through use. The problem is isolated to the sonos software losing contact with the sonos speakers. 

Since this occurred I have contacted sonos service three times and done the above troubleshooting, but they were unable to get their app to reestablish contact with the speakers, and offered no solutions. Since then,  I (on my own) have tried various methods to reestablish the connection by uninstall and reinstalling the sonos app, performing a soft reset of the speakers, and performing a full factory reset of one of my speakers. When i did that, it instantly disapeared from the app and it again said "no devices found".  None of these attempts worked to resolve the communication issue. 

I'm now at a dead end and have zero leads, which is why I'm reaching out to the community for help. I have a home full of speakers that I can't use, except in the TV room, because those speakers were previously synced to my TV and are currently operating independently of the app. I'm very disappointed and irritated that I spent a premium on purchasing these sonos speakers that I'm unable to use.   

I know one fellow who had a somewhat similar issue -- no SONOS system. It turns out that the phone’s WiFi had been turned OFF. Web browsing and email were fine because the phone was using the cell network for external communication.

I suppose that the phone could have switched to the router’s Guest WiFi. This will also allow web and email, but the phone will not be able to connect to SONOS.

Don’t Factory Reset any other SONOS units.

The sonos diagnostics confirmed the cell was connected properly to the wifi router, and the speakers were all also connected to the same router.  There's no mesh in my house and I've never had any connectivity issues with any other devices before or after this issue started. I wouldn't know how to connect to a guest wifi even if I could. 

Agreed on the factory reset thing. I didn't want to do the factory reset, it was my last ditch effort.  I was literally out of ideas.  I'm hoping the direct connect will work.  I know all the speakers are talking together except maybe that one I did the factory reset on.  Diagnostics confirmed all the speakers in the system were on and communicating properly.

Can you provide any more details on what "Setting up reserved IP addresses in the router’s DHCP table", means?  I'm not too savvy with router settings or even how to do that.  I'm much more likely to mess something up than to recognize and fix a problem. My wifi router has just always worked and I've never had any other issues with it.  

I tried directly plugging the sound bar into the router with a cat5 cable.  The router just blinks orange, all the other direct connections I have are solid white.  The app still says no devices found.  

Hmmm. Forum lost my reply.

As setting reserved IP addresses is something that changes from model to model of router, Sonos doesn’t have an FAQ on that, but you should be able to look in the manual for your router. 

Since I don’t know what router you have, I’ll hazard a guess that blinking orange isn’t a good thing. The first thing I’d try is a different Ethernet cable, and being careful when inserting it at both ends that the receptacle isn’t ‘broken’ in some way. But there’s also the possibility of a failure in the speaker, something that might show up on a diagnostic. Unfortunately, you haven’t specified which speakers are in your system, nor which speakers (all?) that you’re having trouble with. 

I’d be tempted to make a second call to Sonos Support directly to discuss it.

It’s similar to stopping at the reception desk as you enter a building. You are given a number (IP address) that identifies you while you are in the building. The numbers are logged on cards in a little box (DHCP table) sitting on the receptionist’s desk. If someone spills coffee in the box or the receptionist runs off to get married, the cards are dumped out and the numbering starts over. Unfortunately, there is no general notice sent out to the clients suggesting that they return to the desk to get a new number and the clients continue to use their current number. As you can imagine, there is high risk of the new numbers duplicating an existing number. This will give rise to “where is my order?”, “I didn’t order that!”, “xxx is not answering!”, and on and on.

There is another, confusing complication. The numbers are “leased” and clients must periodically return to the desk and “renew” their lease. The renewal might result in a different address assignment. This can result in confusion for the human because leases are typically 24hrs. This means that, due to duplicated addresses yesterday, today (after all of the renewals) the situation might have resolved (no guarantee). “Reserving” an IP address gives the device a VIP sort of status and a guarantee that it will always be assigned the same address.

The best action plan for the user is to reboot everything, forcing new, unique addresses to be assigned. Then reserve IP addresses for all regular clients. Yes, this can be a little messy, but this does not need to be repeated until the router is replaced or factory reset. All of the Community regulars reserve addresses and we have not had IP address mayhem in years.

Ive called 3 times, and before that 3 times on chat.  Every diagnostic has shown all speakers are on and functioning properly and connected to wifi properly.

Regarding the mix of speakers I have they are soundbar, 4 play ones, a play 5, a sub, and a move 2.  The sub, bar, and 2 play ones are on one "system", the play 5 and two play ones are on another system, and the move is solo.  That's the one I tried the factory reset on.  

Regarding the cables, I did try two different cat5 cables one 6' and one 10', they both acted the same.  Orange blinking on the router, but green and white blinking on the soundbar. I tried multiple ports on the router with both cables all with the same result.  

I have rebooted the router several times, and my phone several times, and Uninstaller and reinstalled the app several times.  The results of the diagnostics are always the same.  Everything is on and functioning properly, but the app doesn't see or communicate with any of the speakers.  

When I did the factory reset of the move 2 the app set it up as usual, but the instant it completed the set up, the speaker disappeared from the app. And the app again said no devices detected.