Nucleus One Performance Issues with 65,000 Tracks (ref#YX58Q6)

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· Nucleus One

I'm having trouble with my Nucleus hardware

· Other

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· The Nucleus boots up and I can connect to it in the Roon app without issue, but I have a question about configuration/storage/attached devices

Describe the issue

The Nucleus is slow, when I go through the albums every time it stops working and kind of restarts, as if it cannot cope, although I only have 65.000 tracks, less than the 100.000 the One is supposed to handle easily

Hey @Germain_Verbeemen,

Thanks for writing in and sharing your report. We’re not seeing a Nucleus tied to your account, so we’re unable to auto-enable diagnostics to take a closer look into what might going on.

If you could, please use the directions found here and send over a set of Roon Server logs from your Nucleus to our File Uploader? Once logs have been uploaded, please let us know so that we can check the server for your files, thanks!

If it is indeed an issue of RAM, if you chop your library in half (temporarily) do you still run into sluggish behavior and crashes?

Hi Benjamin,
although the Nucleus One works in my network, I don’t see it in Windows Explorer under Network, so I have to use the \ to see it but then I cannot copy the logs into a zip-file because it is called a local file:


The normal functions for directories or files in Explorer do not work…

You should be looking at it under File Manager not a Web Browser. Below is my ROCK Data directory as viewed with File Manager.

Hi Rugby,

as I said, that is the problem, the Nucleus One doesn’t show in Windows Explorer or File Manager as you call it

No one claimed it should show there. Windows Explorer has an address field/bar


where you can enter the path to your Nucleus (\\) to access it. See also:

There may be two issues at play here:

  1. Changes that Microsoft has made to security means that it is no longer possible to access Nucleus or ROCK folders. Then the Group Policy Editor of Windows can be used to work around this.
  2. Windows File Explorer has a habit of not finding non-Windows devices in your network until it’s told to do so. So typing \\Nucleusone\ in the address bar of File Explorer will kick Windows into displaying it again. In this situation, mapping a Windows drive to a folder in the Nucleus will pin it permanently in File Explorer as a drive on your PC.

If you have issue 1, then this article explains how to gain access to the folders on your NucleusOne:

> TECHCOMMUNITY.MICROSOFT.COM

Accessing a third-party NAS with SMB in Windows 11 24H2 may fail | Microsoft…

Changes to SMB security in Windows 11 24H2 release preview may prevent access to third party NAS appliances or other devices.

You want to start at step 6 if you have a Windows Pro version or step 8 if you have Windows Home…

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Thanks Geoff, I gave the Nucleus D: name and now it shows as an extra drive.
I now could also create the zip of the logs and uploaded them under Germain Verbeemen

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Hi @Germain_Verbeemen,
Thanks for uploading the log files for us. From what we can see, Roon is having trouble reading data from files in your internal storage.

Can you share a screenshot of your Nucleus Web Admin Page? If any error messages appear there, they may help point us in the right direction.

Also, please check Roon Settings > Library > Skipped Files and let us know if any files are listed. A screenshot of that page would be helpful as well.

I couldn’t tell from your comments. Were you able to try the test that @benjamin recommended?

Let us know what you find

Hi Daniel, This is the Web Admin Page, looks normal?

The skipped files contains only logs from 2015 to 2018 for mostly I/O failure, so nothing from the Nucleus.

I haven’t tested the half library yet, seems quite a job :wink:

Hi Daniel, something strange happened when I want to move Directories from the ‘Internal Stroge’ directory to the root directory to test an smaller amount of tracks. Although there is 2Tb free on the Samsung 4Tb disk, it says there is not enough space for directories of eg 97Mb…

There is no root directory you could move the tracks to. The “internal storage” directory already is the “root” directory for the internal (secondary) 4TB drive and anything outside is the small system disk, hence the “not enough space” warning, not meant to hold your music files at all. Please move the files off the Nucleus and onto another PC. You can connect an USB drive to that other PC to hold the files if there is not enough space otherwise.

Note: Roon watches the secondary internal drive in its entirety for music files – creating (additional) folders there is not a solution for the task at hand.

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Hi @Germain_Verbeemen,

Sorry for any confusion here - @BlackJack is correct above, there isn’t another internal location you can move your library to within the Nucleus itself. You’ll need to relocate files off the Nucleus for this test.

How is your Nucleus connected to your router? Are you able to set up a simplified connection and get a direct ethernet connection from your Nucleus to your router?