Nucleus slow startup and unable to find audio devices (ref#PLN2G2)

Support
1

What app are you having the slowness issue with?

· Roon

What kind of performance/speed issue are you experiencing?

· The app takes a long time to respond to commands

Please try to reboot your Roon Server

· No, the issue is still the same even immediately after a reboot

Please try to reboot your networking gear (Router/Switches/etc.)

· No, the issue is still the same even after a reboot

Is there any change in behavior if you try to navigate to Roon Settings -> Library and set both Background and On-Demand Audio Analysis to Throttled or Off?

· No, the issue is still the same

Does the issue happen on multiple Roon Remotes (controllers) or just one?

· Issue happens on multiple remotes

Router Domain Name System (DNS) change

· I was able to change my router's DNS servers but it did not help

What is the operating system of your Roon Server host machine?

· Nucleus

Which model Nucleus do you have?

· Nucleus+ Rev A

Timestamp of issue occurrences

· All the time for last months certainly since your most recent software update

Describe the issue

Roon Nucleus takes forever to start up and find files in my library. It also constantly says it can’t find audio devices. All of this is recent as I’ve subscriber to Roon for over 10!years and it’s now a mess

Describe your network setup

Nucleus is connected via Ethernet directly to my modem with ISP speed at 1.3 GB.

2

Hello @John_Falkner1

Thank you for the detailed and well-structured report - the pattern you describe is very useful for diagnosis.

To investigate further, could you please upload your Roon database to our File Uploader? You can find the database location here: Database Location. Please let us know once it has been uploaded.

3

I just sent you my Roon Server database. The problem is with Roon not on my end as I can stream Qoboz Connect to my media streamer and the connectivity is flawless. I then play the same tracks within Roon (using a Bluesound Node 2 and a WiiM Pro) and it takes forever to find the same files and starts and stops constantly. You guys messed something up with your most recent software update as I never had problems before.

5

Hi @John_Falkner1

Thank you for uploading your database - we’ve reviewed the logs and have a clearer picture of what’s happening.

The pattern we’re seeing is consistent with a memory management issue in RoonServer that causes the internal RAAT broker to become increasingly unstable over time, resulting in audio endpoints dropping and slow response times. This is something our R&D team is actively working on.

In the meantime, the most reliable workaround is to restart your Nucleus once a day - this resets the memory state and keeps things running smoothly until the fix lands in a stable release.

If you’d like to try the Early Access build in the meantime, you can do so by following the instructions in our Knowledge Base article here: https://help.roonlabs.com/portal/en/kb/articles/roon-early-access-program

For Nucleus, the process involves downloading the instruction file, copying it to the /Data/Reinstall directory on your Nucleus, and clicking “Reinstall” in the RoonOS admin page. Please make sure to create a fresh backup of your database before switching.

Either way, your database has been passed along to R&D for further investigation, so it will contribute to resolving this properly.

Appreciate your patience, and thank you for being with Roon for ten years - we want to get this right for you.