Nucleus not detected on network and issues with PC speaker detection (ref#9FND6D)

[Alan_Chapin]

Hi! What’s not quite right with Roon?

· None of the above quite fits

None of the above quite fits

· None of these quite match

Tell us what's going on

· Roon Nucleus is not seen on my network. Roon is working on my PC I just don't see the Nucleus on my network. When I connect the HDMI cable to the PC it doesn't see it but when I connect to my HDMI ready TV music does play. Most of my music collection is on an external back up drive that Roon does see and play when connected to the TV. The external drive has photos on it as well so I want to copy my music collection to the Nucleus and reconnect the external drive to my PC so I can access my photos. Also Roon does not see my speakers on the PC but Tidal does? Very confused... Please advise...

Tell us about your home network

· NetGear GS108

[Geoff_Coupe]

@Alan_Chapin

When I connect the HDMI cable to the PC

Then in that configuration you are connecting the HDMI output of the Nucleus to the HDMI output of your PC… Connecting an output to an output won’t work, you’re supposed to connect an output to an input…

And if you want to see your Nucleus on your network, you connect the ethernet port on your Nucleus to an ethernet port on your router or a network switch…

[Alan_Chapin]

That makes sense, connecting the HDMI to the PC was incorrect. I now have it connected to my TV/stereo system and I see the Roon Labs info on the screen but no sound plays? The Nucleus has been connected to the router since I set it up a few days ago but I still can’t see it on my network?

[Geoff_Coupe]

I don’t quite understand - you seem to be saying that you are using Roon successfully to play music, yet you cannot see the Nucleus on your network? Are you using the Roon Server in your PC instead of your Nucleus?

[Alan_Chapin]

I had a core set up on my PC for years before I received the Nucleus recently. It looks to me like it’s still running off my PC. I uninstalled Roon then re installed and selected the Nucleus One but it seems to be as before.. this PC is not running properly. My son who knows a lot more is trying to fix by wiping the drive and starting new. Hopefully a new install works.

[vadim]

Hello @Alan_Chapin,

Thanks for the update — this helps clarify what’s happening.

At the moment, Roon on your PC is still connected to the PC-based Core you used previously. That’s why it appears that the Nucleus isn’t being used, even though it’s powered on and connected to the network.

What to do next

1. Open Roon on your PC
2. Go to Settings → General
3. Click Log out / Disconnect from this Core
4. Restart Roon
5. When prompted, select the Nucleus as the Core

This will switch your PC into Remote mode, controlling the Nucleus as intended.

Optional

If you want to keep your library edits, history, and playlists from the old setup, you can restore a backup on the Nucleus via Settings → Backups → Restore.

Important note

The HDMI output on the Nucleus is for diagnostics only and does not carry audio. Audio playback happens through enabled audio devices in Settings → Audio.

Once connected to the Nucleus as the Core, everything should line up correctly.

[Alan_Chapin]

I tried what you mentioned but I’m not sure it worked correctly. See the screen shots I’m seeing.. Please advise…

[alex_h (Alex)]

Hi @Alan_Chapin !

According to your screenshots it looks like you were able to connect to your Nucleus.

if you want to access the internal storage of nucleus please use this article in order to get SMB instructions.

Let us know please in more details what are you further intentions and problems.

Thanks!

Looking forward to your reply!

Regards.

[connor]

This thread is now closing due to inactivity, having received no responses in the last week. If you wish to reactivate the conversation to continue troubleshooting, please simply submit a new request here and we’ll merge threads accordingly. Thank you!

[Alan_Chapin]

Hi! What’s not quite right with Roon?

· None of the above quite fits

None of the above quite fits

· None of these quite match

Tell us what's going on

· Roon not found on my network and speakers not found. I have already posted this problem a few weeks ago but the PC I was using died so I purchased a new PC and installed Roon but I'm still having the same issues as the last one. Roon starts up and I can see my playlists but many items listed say unavailable or corrupt? Tidal works fine on it's own but not in Roon. Within the Roon home page it shows only 17 albums but there should be a lot more. All of my music is backed up on an external drive that is currently connected to my new Nucleus. Before my old PC was the core but I received a Nucleus and tried using it as the new core but can't see it on my network. The Nucleus is currently connected to my router. I have a few screen shots but I can only upload one at a time? How do I send more so you can see what I'm seeing?

Tell us about your home network

· Net gear GS108

[Carl]

@Alan_Chapin

I have already posted this problem a few weeks ago but the PC I was using died so I purchased a new PC and installed Roon but I’m still having the same issues as the last one.

I’ve reopened your previous topic and merged so all the history is together.

[benjamin]

Hey @Alan_Chapin,

Thanks for writing back in! And thank you for linking threads @Carl

Just to confirm - it sounds like you’re able to successfully connect to your Nucleus running Roon Server from the new PC, that’s good news!

Let’s take a look at each of your issues one at a time. First - Tidal:

1. Can you please navigate to Roon Settings>Services>Tidal>Edit and force a manual re-sync? If that doesn’t help, please log out and re-login to re-sync your TidalxRoon accounts again. Let me know if that helps

Next - Roon not seeing any local outputs on your new PC:

1. First, let’s try restarting your Nucleus. Access the webUI of your Nucleus, and perform a restart there. Here’s more info on the webUI:
   1. https://help.roonlabs.com/portal/en/kb/articles/roonos-webui
2. If that doesn’t help, it may be worth testing out temporarily disabling of your PCs windows defender:
   1. Access your Windows Firewall and select “Windows Defender Firewall with Advanced Security”
   2. Select “Inbound Rules” in the left panel
   3. Find “raatserver.exe” and “roon.exe” entries. If any of them have a red stop/cancel symbol next to them, double-click those entries, change from “Block the connection” to “Allow the connection” at the bottom, and click OK. It should update to a green checkmark.

Thank you!

[Alan_Chapin]

The Nucleus is not seen on my network. When I disconnect the desktop there is option to select the Nucleus? My backup drive is currently connected to the Nucleus.

[vadim]

Hello @Alan_Chapin

Thanks for the clarification — I can see where the confusion is coming from, and this is actually a very common situation.

Your Nucleus is already detected and being used correctly as the Roon Server.

The reason you’re still seeing a name like “DESKTOP-…” in the UI is because:

• Your Roon database was originally created on your old PC
• When that database was later restored onto the Nucleus, the server hostname stored inside the database was carried over

So even though the UI shows a name that looks like a PC, the server you are actually connected to is:

• Your Nucleus One
• Running RoonOS
• With your external drive attached directly to the Nucleus

The name you see is just a label, not an indication that Roon is running on the PC.

Roon Nucleus does not appear like a normal PC in Windows Network Explorer. That’s expected.

To access it:

• Use the Roon app (which you’re already doing), or
• Use the RoonOS Web UI, or
• Access storage via SMB using the documented Roon instructions

There’s one more important piece to clear up, which explains the “This drive is not available” messages you’re seeing.

Your Roon database still contains folder paths from your old PC setup, for example:

• DESKTOP-UV29F53 > BACKUPDRIVE
• DESKTOP-UV29F53 > BACKUPDRIVE > ESCIENT BACK UP

Since Roon Server is now running on the Nucleus, those PC-local paths no longer exist, so Roon correctly reports them as unavailable.

To fix this cleanly, we need to know where your music files physically live now. Could you please confirm one of the following:

Option 1 — Music is already on the Nucleus

• The music files are on:
  • the internal storage of the Nucleus, or
  • an external USB drive connected directly to the Nucleus

In this case, you’ll want to:

• Go to Settings → Storage
• **Edit ** the old DESKTOP-… folder entries
• Add the path to the correct folders that exist on the Nucleus instead

Option 2 — Music is still on the PC

• The music files are still stored on your PC, not on the Nucleus

In this case, the Nucleus cannot see PC folders directly.
You’ll need to:

• Share the music folder from the PC over the network (SMB)
• Edit it in Roon as a Network Share (using a network path like \\PCNAME\Music)
• Make sure the PC is powered on whenever you want Roon to access that music

[Alan_Chapin]

Hi Vadim, I really appreciate all your help! I reconnected the backup drive (where all my music is stored) to the PC and now I’m able to play some of the music from my play lists but not all? I can select certain songs and they play but others do not play. They show as being unavailable or corrupt but that’s not consistent because some still play but others not even though they are labeled as (unavailable corrupt) . I know the music is good because I can play the songs directly from the backup drive via windows media player. Also what is being played is not correctly displayed at the bottom of the roon screen. Another thing I still see is on the home page that does not show all my collection correct (artists, albums,tracks,composers) See screen shots attached..

[benjamin]

Hey @Alan_Chapin,

Could you please share another screenshot of your Roon Settings>Storage?

If you haven’t yet, I’d again safely stop and reboot your Roon Server / Nucleus.

Afterwards, head to your Roon Settings > Library > Skipped files, and let us know what you see. It could be useful to review your Clean up Library window as well - don’t perform the clean up function (as it will remove any corrupt or issue tracks), but it’ll give us a good indication as to how many tracks are throwing errors.

It would also potentially be helpful to force a manual re-scan of your watched folders once they’ve been properly updated.

We’ll be on watch for your reply, thank you!

[Alan_Chapin]

This is what I’m seeing…Please advise..
Thank you!

[noris]

Hello @Alan_Chapin ,

Thanks for the additional info. Can you please navigate to the storage page once more, click the 3-dot menu next to each storage location and perform a forece rescan action. Does this help restore the library?