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Trending Lyricist I
May 22, 2026
Answered

buffering issue

I have had a Sonos system since 2019.  Started with two One SL speakers and a bridge to connect a Denon receiver and Polk Audio speakers.  Over the years I’ve abandoned the bridge because it was neither reliable or easy to use.  I’ve added two more One SL’s, a Move, a Move 2, a One, and a Play, so now 8 speakers. 
I stream music off Apple Music.  In the past that was reliable and enjoyable.  A couple years ago Sonos updated their App and I went through several months of buffering issues.    Eventually, after several hours with phone support, we connected an Ethernet cable to one SL speaker and things sorted out.  
About a month ago, my system decided buffering was preferable to playing music.  Sonos Tech support said delete the Ethernet cable and reboot speakers and mesh network.  I did, the buffering persisted. Deco support said their X55 system supports 2.4 and 5 GHz broadband.  They walked me through setting up a network that is only on 2.4 GHz and connecting all the Sonos speakers to that.  I had to add my iPhone to that network so I could control the Sonos system. The buffering persisted.  Currently it cannot play one song without buffering and I am ready to trash all these useless speakers.  
I have a Deco X55 3 node mesh system that supplies my internet.  I stream all my television through various services, YouTube TV, Disney, Paramount+, and several others, occasionally simultaneously on two Smart TVs.   
The issue has to be with Sonos.  
I have tried deleting and including the Ethernet cable,  powering down all 8 speakers and all three mesh nodes, bringing up the mesh system and verifying it is working properly, then starting the speakers several times.  Nothing works.  

Is there a way to find out if Sonos recently updated?  
Does anyone know a solution to this issue?  

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buzz
buzzAnswer
Grand Maestro
May 27, 2026

When a track terminates early and the.player attempts another track, this is an indication of a more severe communication issue.

When you start play using a SONOS controller, the player will work directly with the APPLE server. This is why you can remove your phone from the area and play continues. You could actually uninstall the controller and music will continue. When using AirPlay the phone is fetching data from APPLE then relaying wirelessly directly to the player, second by second. This can circumvent problems with your network accessing the APPLE server or the players. Issues will leave tracks in the diagnostic.

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40 replies

Airgetlam
May 23, 2026

I don’t understand the comment of ’we don’t have a router’. What is generating IPs and directing traffic to all these devices? Even Fiber connections connect to a router. 

Bruce
Stanley_4
Grand Maestro
May 23, 2026

They make life difficult by calling it something else, it is still a router.

https://www.quantumfiber.com/support/equipment/user-guides/c5500xk-smartnid.html

Yep, it is a router and not a very good one, not easy to set to transparent mode so you can use a good one.

kdowling
May 23, 2026

Here’s what I would do to try to narrow it down:

Turn off / unplug all your sonos devices. That includes powering off your portable devices (Move, Move2, Play etc). Then power on one device (not a portable), such as your One, using an ethernet cable to the first device where your fiber comes in (normally called the router). Now test streaming from Apple Music using the Apple Music service in the Sonos app.

AjTrek1
May 23, 2026

OK Guys….

The device in the link provided above is not a router. It is a Fiber Optic Modem. However, I’m curious as to how it was determined that the device in the link is what the OP has? Anyway my guess (as it’s similar to my Fiber Optic Modem by GFiber fka Google) is as follows:

  • Green cable is incoming from ISP (940GB)
  • White Ethernet on the right connects to a router
  • White cable on the left is power

 

Here are pictures of my Fiber Optic Modem provided by GFiber (Google) that’s located in my garage:

 

The next picture shows the same connections as the one in the link:

  • Green is incoming from GFiber (3GB)
  • Brownish Ethernet connects to my router
  • White (bottom) is power

 

The device in the link promotes a propritary 360 WiFi which is merely two pods connected to the modem as shown (or one can use their own router);

 

All said the OP’s Deco X55 comprises three nodes connected to their Fiber Optic modem instead of the pods shown above; if that’s the case. One of the Deco’s is designated as the router.

Why the OP stated they don’t have a router is a mystery 🤔. That means the OP doesn’t fully understand their network components.

Together Everyone Achieves More = T.E.A.M.
kdowling
May 23, 2026

So does the OP have a LAN ethernet connection that is on a router and not on an Access Point? That is what I was getting at. Plug the One ethernet into a LAN port on a router.

User117655
Prodigy II
May 23, 2026

Deco x55 can act as a full router... It is selectable but presumably the OP is utilising this otherwise nothing would be working!

However the modem referenced above also has advanced settings suggesting router capabilities: 

If OP is running 2 DHCP instances or has conflicting settings between Deco and modem units then this could be the issue...  

Stanley_4
Grand Maestro
May 23, 2026

My link was just an example of how the ISPs avoid saying router.

It usually takes a bit of research to understand just what is in an ISP provided box. I have seen setups installed with two active routers and double NAT on the second plus two Wi-Fi LANs, sometimes with the same SSID. Seen many other problematic installs where skills were lacking and defaults blindly accepted.

It would be nice if installers were well trained and allowed time to do a proper job. Nice if they had an accurate, written, description of the install to pass on too.

kdowling
May 23, 2026

So I had to look up the Deco x55 too lol. It has 3 ports. It auto senses the WAN port and the other two are LAN. On the one acting as the router, probably your basement/first node (which should be the one that has a cable going to the fiber modem), plug the Sonos One into one of the other ethernet ports.

WarminupAuthor
Trending Lyricist I
May 26, 2026

I ended up steaming Amazon Music through the Memorial Day weekend.  
no cable from the Decos to any speaker,  deleted the ‘connect’ piece months ago.  
system still skipped on Apple Music last Saturday.  (Tuesday now). 
Apple Music just ran 3 songs without skipping, then silence for approx 20 seconds and started a song mid way through.  I’ll leave it run and see what happens.  
 

User117655
Prodigy II
May 26, 2026

​@Warminup have you checked and ruled out the above highlighted issues, namely running dual DHCP instances and ARP spoofing?

(oh, & static IP assignment?)