Unable to connect to Nucleus One due to security issue (ref#RNN0II)

Select your Nucleus model from the list below

· Nucleus One

I'm having trouble with my Nucleus hardware

· Other

Select the option that fits best

· 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

I cannot connect to Nucleus One from my pc, because of an security issue, everything else is ok, but this also result in lack of backup setup

Does it say that you need to enter a username and password, and are you using Windows 11 with the recent 24H2 update? If yes, see here:

1 Like

Yes i have w11 24H2, but i think the problem started when i migrated Roon server from my pc to Nucleus One, i had to unauthorize the pc from roonserver, because of Nucleus one and then the problem started. I have cleaned my profile and reinstalled roon on the pc, firewall is also ok, the closest i come, is when i try to make an network connection to Nucleus One(ip-adress), i get username and password, but it will not accept the right password because of an security issue

That’s because the Nucleus only provides an anonymous log-in with the username and password being „guest“, and since 24H2 this is considered insecure by Windows and it’s not allowed by default.

Therefore, you need to explicitly allow it. The link I posted provides all the information.

The problem is that is not a Nucleus USB storage issue, its only connected to network

The issue IS a network issue.

Windows by default does not allow you to access an SMB network share with guest/guest, but the Nucleus offers only guest/guest.

Therefore, you need to explicitly allow it in Windows.

There were a hundred other threads about the same issue. Why don’t you try the suggested solution rather than arguing?

(And a USB disk that is attached to a Nucleus is also accessed over the network by SMB. For the problem it therefore doesn’t matter if it’s internal storage or a USB disk attached to the Nucleus)

Hmm, i have allowed it, but it won’t work, perhaps i connect a usb to pc instead ?

Did you reboot Windows after making the change?

And double check that you made the changes correctly (it wouldn’t be the first time that a small mistake prevents it from working). Ideally post screenshots.

That’s another option. In this case, make sure that it is formatted with the exFAT file system (not NTFS) and turn off the Nucleus before removing the disk, just to be sure it’s unmounted correctly.

sorry, i’m to bad explaining, thinking of connecting nucleus one to pc with a usb-cable

That won’t work

Ok, seems like Nucleus One is hard to connect to and thats the most important issue of an multiplayer, this is bad programming…

Well, it was Microsoft who changed something that had worked for decades, with rather flimsy arguments and without giving users a simple solution and expecting them to edit the registry or issue PowerShell commands.

Roon Labs have said that they are working on a solution, and it’s true that they are being a bit slow with this, but adding an authenticated user account to Roon OS is probably quite a significant change to the security model. They had more than enough time to update their Nucleus help page for SMB access, though.

Ok, thanks a lot for your help, i will now try to change the group policy access

1 Like

Hi @Asle_Hembre,

Thank you for your patience over the weekend while the Roon team was away and thank you to @Suedkiez for your prompt suggestions.

As recommended above, reverting the Group Policy settings (that automatically change with Microsoft updates) is the most immediate solution here in most cases.

Please let us know if you need additional help after taking this step and we’ll watch for a response. Thanks!

After adjusting the policy in my win.11 pc, and several restarts, it now look like this, see image.
I also finally been able to setup backup, but the only thing i’m wondering , is where my Samsung 2TB ssd-disk is, is it under storage ? I have been formatted this twice.
I also configured backup under the storage map.

1 Like

Yes. It will appear as a sub-folder within “Storage”

A Nucleus internal SSD will have the folder name “Internal Storage”.
External SSD’s connected to the Nucleus by USB will have a device specific folder name.

1 Like

I have the subfolder Internal Storage, but i can’t see no size in the explorer interface

This is normal because it presents to windows as a folder - not a drive.

This is a consequence of the way that Linux manages multiple disks.

You should see the total size and percentage used in the Nucleus WebUI.

Yes, but i can see other folders size, but not this one, and the size is also important due to backup

The WebUI sucks, its so simple and gives you almost nothing, this could easy have been much better, see image: