· None of the above quite fits
· None of these quite match
· Receiving error “Roon lost control of the Audio device”
· Nokia WiFi Beacon G6
Diagnostics indicate connection instability within your group:
01/15 04:03:11 ... [zone Living Room (S) + Move 2 (S) + Kitchen 5 (S) + Media Room (S)] OnPlayFeedback StoppedLostEndpoint
The logs suggest this originates from the “Sonos Five”.
Please try the following:
Let us know your observations.
Alex,
Firstly, are you talking about the single Play 5 I have labeled as ‘kitchen 5’or the stereo pair of Plat 5’s I have labeled as ‘Living Room’?
Either way, I separated all Sonos speakers out and ran them as individual endpoints, and did not notice any audible dropouts. Could you please look at the log and confirm there has not been any issues? To me this indicates an issue with Roon itself in not being able to control grouped Sonos speakers without issues - I have seen other threads expressing this concern.
A further question - why is there no phone in technical service available from Roon? I find your system complex and do not have the IT skills to resolve all issues. It would be nice to have someone step me through to resolve issues that you probably find simple.
Thanks for the update.
Roon Server logs indicate the crash is due to network overload. Two devices show the lowest buffering rates, suggesting signal instability:
Let us know if this improves stability.
I will try that as soon as I have time to sit and listen.
First question - why if I stream directly using the Sonos app do I not have these dropout problems? I had assumed that once I had a dedicated Roon server to handle my music that there would be greater stability and flawless streaming.
Second question - If I could possibly wire my “Media Room” Sonos Port directly to the router via an etherenet cable, would it have any bearing on the network overload you mentioned?
Third question - if I have a modem that is capable of downloading speeds of 1.5Gbs, why would there even be an issue? I could be missing something with my lack of understanding with all the technicalities, but would like to understand.
I am still waiting for a response on this query - how long does that typically take? I’d like to get this system figured out so I can fully enjoy the benefits of what Roon has to offer.
Hell Roon people,
I’d really appreciate a response on this thread as I am still trying to get my system operating correctly.
I seem to be able to group the Media Room and Living Room together and separately the Kitchen and Move with no apparent playback issues. However when I group the four together, playback issues start to occur. And as previously stated, if I group them together and play them using the Sonos app, it is flawless. Hence I would conclude it is a Roon issue. A further note, all these endpoints are within thirty feet of my router and speed test indicate I have speeds of more than 1350Mbps download and 50Mbps upload.
Waiting impatiently for a reply as it has been left too long.
Hi @telosman33,
Thanks so much for all the additional information and patience so far!
There are a few reasons for this - ultimately, Sonos and Roon use different transport paths, and Roon does not control Sonos natively.
Setting up hardwire ethernet is definitely an excellent next step in troubleshooting. Let us know if you’re able to give the above a test!
This could depend on a few different things, but the modem itself sounds like it should be able to handle stable throughput. Can you provide some more information around your network setup? Do you have any managed switches tied to your Roon-related devices?
We’ll be monitoring for your reply, thanks @telosman33 
Well, I did try to hard wire a couple of my Sonos devices, notably the “Media Room” Port and my “Living Room” stereo Play 5’s, but sadly the results were disappointing. I lost control of almost everything on the system. I ran one ethernet cable from my router down to the port and daisy chained that to my Play 5 - according to Sonos, the two ethernet ports on the Sonos port act as a switch. Concerning switches, I have none on my network. After removing the ethernet connections, I was able to re-establish most of the Sonos system besides an anomaly. Sonos (and my router) shows both the “Attic” speaker and “Move 2” being available, and they will play under Sonos control, yet they do not show up in my Roon Nucleus “audio” settings using Sonos streaming even though they appear as available via AirPlay2.
Please note that I did a factory reset on the Move 2 in order to see if it would alleviate the issue of Roon not seeing it as being available to stream via Sonos protocol. The Move 2 does however show up twice in the AirPlay2 protocol even though the IP addresses are the same.
There has been multiple reboot attempts of both my router and Roon server as I have tried to troubleshoot the issues.
Thanks for your comment.
You are absolutely right about the connection method. Daisy-chaining the Ethernet from the Router -> Sonos Port -> Play:5 is almost certainly what caused your network crash and loss of control.
While Sonos devices have two ports, they are not designed to handle the high-bandwidth traffic that Roon sends (RAAT protocol is significantly heavier than standard Spotify or Sonos streaming). Passing this traffic through the Sonos Port likely created a bottleneck that overwhelmed its network card.
The Solution: Use a “Star Topology”
We recommend moving away from the “Daisy Chain” setup:
Since you performed a factory reset and made network changes, Roon likely holds a “stale” device ID in its cache, which explains the duplicates you are seeing in AirPlay.
To fix this, please restart the Roon Server software itself (not just the remote app on your phone). You can do this via the Nucleus web interface. This usually clears the cache and forces Roon to rediscover the new IDs of the reset speakers.
We hope this helps stabilize your system!
Sorry, but can you supply specific instructions on how to do the Roon Server Software restart. I have looked through my Roon controller on my iMac but cannot see anything within the “settings” tab that mentions the restart.
Thanks
Hi @telosman33,
No problem! You’ll actually want to safely restart Roon Server on your Nucleus - here is more info on how to access the webUI of your Nucleus:
Let me know if this helps!
Benjamin,
I’ve restarted my Nucleus as suggested, and it has cleared up those issues. A question though - why not incorporate this software restart within the Roon App settings - seems logical to have it there.
If possible, could you check the diagnostics on my Nucleus prior to 1:45 EST to check for issues - Roon lost control quite frequently. I just received Netgear switch today and have placed the Living Room speakers on it, and hope to add more Sonos endpoints in the future.
I can’t see harm in adding it there, too. However, from there it would depend on Roon actually being able to reach the server, and hence its discovery protocol working, which tends to not work if there are network problems.
The web UI just uses http and is therefore much more resilient in the event of network configuration problems.
Hello @telosman33,
Thanks for the follow-up — glad to hear that restarting the Nucleus and adjusting the network topology resolved the playback issues 
Regarding your question about adding a Restart Roon Server button directly in the app settings:
at the moment, this functionality isn’t available in the Roon UI. As one of the community members correctly noted, the Web UI is intentionally designed to be more resilient, especially in scenarios where discovery or network communication inside the app may already be impaired.
That said, there is an existing feature request for exactly this idea, and you’re very welcome to add your vote or comments there:
At this time, product prioritization is driven largely by community demand, and this request hasn’t yet reached a level of interest that would move it higher on the roadmap — but feedback like yours absolutely helps.
Since your system is now behaving as expected, we’ll go ahead and mark this thread as resolved.
If anything changes or new questions come up, feel free to start a new topic — we’re always happy to help.
Enjoy the music 
Sorry, but not sure why you say this issue is resolved - it is still ongoing and I am in the process of trying to resolve. Hence why I have purchased the NetGear unmanaged switch and attempting to incorporate it into my network. My first attempt of adding Sonos devices locked up the Roon.
Also, there was no reply concerning checking the Nucleus One logs I made on my last reply. I’d like to know if anything useful shows up.
I took some screen shots of various devices on my network, and would like to know from the perspective of how Roon transmits data if there could be a potential issue in the TX and RX Rates shown:
@benjamin marked his post as the solution because you said that it had cleared up those issues:
I have removed the solution checkmark on his post to re-open this thread. Perhaps you could clarify what precisely the ongoing issue is?
Regarding the TX and RX speeds that you posted, they are not the issue.
The ongoing issue is that I am still receiving multiple “Roon has lost control of the audio device” messages as the system stops playing my selected music through my Sonos system.
