Nucleus internal SSD not transitioning from 'Not Ready' to 'OK'

Roon Core Machine

Roon Nucleus, Serial #54B2039B3A9B, with internal Samsung 860 EVO 4TB SSD. Roon Operating System is Version 1.0 (Build 227). Roon Server software is Version 1.8 (Build 806). I’m also using an iPad Pro 2020 model (2nd Generation) on iOS 14.6

Networking Gear & Setup Details

Samsung 860 EVO 4TB 2.5 Inch SATA III Internal SSD (installed in Nucleus)

Ubiquiti UniFi Cloud Key Gen2 UCK-G2

Ubiquiti UniFi Switch 8-Port Managed Gigabit Switch

Ubiquiti UniFi USG Security Gateway

Ubiquiti UniFi 802.11 ac Pro Access Point (KEF’s were connected to WiFi prior to getting the Nucleus a few weeks ago)

Ubiquiti network controller version 6.2.26

Synology DS218+ 2 Bay NAS running Synology DSM 6.2.4-25556, and with 2 x Seagate Iron Wolf 4TB Drives

The ISP issued modem is: Huawei EchoLife HG8245Q2

Connected Audio Devices

Loudspeakers only, and they are KEF LS 50W’s, connected by Ethernet Cable to the network (Through the UniFi Switch).

Library Size

66,700 tracks

Description of Issue

I’m a brand new Roon and Nucleus user/owner, and I’m generally very happy with Roon so far. I can’t seem, however, to get the internal SSD in the Nucleus to transition from ‘Not Ready’ to ‘OK’.

I’ve formatted the SSD several times, which appears to go well, but then I get a pop-up screen which says:
‘Internal Storage Disk formatted successfully. However, it seems the IP address of your device has changed, so you will need to return to the Roon application to determine the new IP of this device’

Despite having done extensive searching through the community archives, I’m just not seeming to find the resolution to this issue, as the discussions I’ve read so far do not appear to address my specific issue in its entirety.

I’d appreciate your help in resolving this issue.


Sorry for the trouble here, @vfpb

I enabled diagnostics on your Nucleus and I see that it ran the internal storage format process, and it appears to have completed successfully without any errors.

Can you share some screenshots of what you’re currently seeing when you go to the Web UI?

Hi Dylan,

Thank you for your prompt response, it’s appreciated. Here are the screenshots.


Hi Dylan,

I’ve not seen a response to my posting of the web UI screenshots as you’d requested…

Can you provide me an update please?

Thank you.



Just a different screenshot of what I’m seeing after formatting the SSD, which I just did again in an effort to get my nucleus sorted; for your information




I’m sorry for the delay here, @vfpb — I’m checking with our QA team on this and as soon as I have their feedback I’ll be sure to reach out to you ASAP.

Ok, all noted, with thanks. I’m standing by.


Hi @vfpb, I just wanted to let you know that this hasn’t been forgotten about. I’ve talked with the team and this is being escalated internally and once I have next steps I’ll be sure to reach out ASAP.

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