Roon Nucleus experiencing drop-outs on Mac and iPhone (ref#S2F8PI)

[Mischa_De_Vos]

What best describes your playback issue?

· Music stops playing unexpectedly

What type of Zone is affected by this problem?

· *All of my Zones* are affected.

Does the issue affect all file formats?

· The issue affects *multiple/all* file formats.

Does the issue happen with local library music, streaming service music, or both?

· *Both streaming and local* *library* music are affected.

Do you encounter any playback errors with the "System Output" Zone?

· The System Output has the same problem as my other Zone.

Is your RoonServer machine running MacOS 15 Sequoia or above?

· Toggling Local Network access in MacOS settings solved the issue.

Do you have a complex network setup?

· Both the device and RoonServer are connecting to a *single router*

Please try rebooting your router.

· No, I'm still having trouble

Do you have an approximate timestamp of when the issue last occurred?

· Amsterdam time 12.00 pm

What are the make and model of the affected audio device(s) and the connection type?

· Macbook pro, eversolo DMP a6 endpoint and Iphone 12

Describe the issue

Roon Nucleus one + Remote on Mac os Sequoia 15.3.1. and Iphone 12, IOS 18.3. Router: Experia BOX V10 with latest update.

I can find the roon server on both devices, but after 2 to 30 minutes there is a drop-out. The screen turns black with only the moving Roon symbol in the middle. I can't do anything. After a few minutes to half an hour, the app restores itself, but I have to find all the endzones again.

Describe your network setup

Experia box V10 - ethernet cable - nucleus one -Iphone12 with IOS 18.3 and macbook pro 2019 with sequoia 15.3.1

[benjamin]

Hey @Mischa_De_Vos,

Thanks for writing in, and welcome to the community!

@Mischa_De_Vos

Is your RoonServer machine running MacOS 15 Sequoia or above?

· Toggling Local Network access in MacOS settings solved the issue.

Do you still experience the issue after performing the above action? In additon to this, one of the myriad network security changes introduced with MacOS 15.x was MAC address randomization.

I recommend navigating to your Network settings (WiFi → Details) and checking whether the Mac in question is relying on a Fixed, not a rotating, Private WiFi Address.

If after the above, you still experience disconnects, please take note of the specific date, time, and name of track playing. From there we’ll enable diagnostics and take a closer look - thank you!

[Mischa_De_Vos]

Hi Benjamin, Thanks for your reply. The private wifi-adress is fixed, so that should be ok. I will make a note of the date, time and the name of the track I was playing when i happens again. And I will post it here. Best! Mischa

[Mischa_De_Vos]

10.03 Roon stops:
Artist: Kirk Whalum
Song: Epic Cool /cd Epic Cool

10.07 Roon comes back for about 30 seconds: says: album unavailable

Roon says: Ow ow something went wrong

Takes about 5 minutes. Roon is back with the screen I started playing this morning.

.

From then Roon radio played based on this album. Everything disappears again. Black screens.

It’s now 10.46 and Roon is back on track. I can listen to music now.

Maybe this helps finding out what the problem can be.

Thanks for all the help.

Mischa

[Mischa_De_Vos]

13 February, 2025 8:23 p.m. Playing Simon Oslender: Piece of mind.

Then during playing searched for Will Lee. Roon stops, Black Screen.

After 20 seconds the screen displays: looking for Roon server.

At 20.27, everything appears to be normal, but Roon can’t find the audio zones.

Then everyting dissappears againg. Display says: uh, something seems to be wrong. Black screen again. Maybe Roon recovers tonight.

Thanks again for your help!

Mischa

[benjamin]

Hey @Mischa_De_Vos,

Thanks for sharing the above information! We were able to pinpoint the cause of the issue - your Nucleus is out of available RAM, likely due to your library size (~184k tracks) being almost double the device’s capacity (up to 100k tracks.) Here’s the error trace:

user.err kernel: [10107.713587] Out of memory: Killed process 9795 (RoonAppliance) 

Note that you are allowed to change the RAM, but if your Nucleus is damaged by the new RAM or the upgrade process, it’s not covered under warranty, unfortunately.

Another option would be to cap your library size closer to 100k tracks.

Certainly, let me know if you run into any other questions!

[Mischa_De_Vos]

Hi Benjamin,

Thank you for your reply. A good idea: I’m going to drastically reduce my library. Changing the memory doesn’t seem like a good solution to me. I’m not that technical. Thank you very much for your reply and best regards,

Mischa