Significant playback delays and pauses on Roon Nucleus B across all controllers (ref#TXUB3P)

Support
1

What app are you having the slowness issue with?

· Roon

What kind of performance/speed issue are you experiencing?

· Tracks take a long time to play

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 don't know how to do this

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

· Nucleus

Which model Nucleus do you have?

· Nucleus Rev B

Timestamp of issue occurrences

· The most recent was before I started this request. July 30th from 6:20 PM until I shut down my attempt to fix the issue at about 9:10 PM CST.

Describe the issue

I have a Roon nucleus B. Over the last month using it from any controllers (laptop, tablet, IPhone, etc) I can usually play music to begin with but as soon as I switch to another album or song there is a lag/delay that can take 5+ minutes for the command to process.
I will see pops up such as audio is processing, this may take a minute (or something g very similar to that. I can wait 20 minutes and still nothing plays.
I have searched through any relevant forum topics with no success. I did read the issue may be router setting, so I changed it to “static” and this made no improvements.
This problem is the same whether I use Roon through a PA audio server plugged in to my DAC, streaming directly to my main system DAC (MSB streaming DAC) or streaming from a headphone amp/streamer/DAC.
All devices are plugged in to the Ethernet, so it’s not a WiFi issue.
I purchased the nucleus new about 5 yrs ago. SN 54B2039BA2A9. It wouldn’t work and crashed when I installed it. The vendor I purchased it from helped me troubleshoot it and generated a warranty ticket through Roon and the hard drive was found faulty. Roon sent me a replacement which I installed and it worked great up until about two months ago.
I’m able to stream to my devices directly with no issues using QOBUZ directly (not through Roon).
I’ve rebooted the Roon multiple times and it makes no difference.
When a track IS playing, it will pause intermittently for minutes at a time.
Thank you in advance for any assistance. I am not the most tech savvy individual. Many of the Roon help topics speak in a vernacular that makes my head spin

Describe your network setup

Ethernet provider is BTC (Bixby telephone service).

From the Ethernet connection in the wall the 1st device is a ZyXEL VMG4005. I don’t know what it’s called.

It then connects via Ethernet cord to Calix GigaSpire model u6xw. It then connects via to the wall with the Ethernet wires throughout the house.

In an adjacent room the wall has Ethernet which connects to a Nordost Qnet switch which in turn connects to the music devices (DAC, Roon Nuclues, Streamer)

Prior to the Nordost switch is a Linksis SE 3005 signal booster.

2

Hi @Shayne_Guyer,

Thanks for the detailed rundown. We’ve enabled diagnostics for your account so we can get a closer look, but the Nucleus does not appear to be online at the moment, and we will review logs next time we hear back from you.

Based on what you described, this still points us toward the network. Would it be possible to temporarily bypass any switches or extenders and connect the Nucleus directly to the primary router to see whether that changes the behavior?

Please let us know what you find.

3

I had the Nucleus unplugged last night as I was checking other cable connections.

I relocated the nucleus and connected directly to the router and both locations of my equipment plugged in to the Ethernet worked great for 40 minutes.

Of the two locations, room A was still running two Ethernet plugger streamer on Roon flawlessly.

Room B simply stopped playing and I attempted for 50 minutes rebooting my gear in that room but I was unsuccessful.

In conclusion I believe there is a working issue with Rm B. I will keep the Nucleus plugged in to the router, thank you!

I will grab a 70’ Ethernet cable and run it from the router to rm B tomorrow and check if that confirms it’s an Ethernet wiring issue.

thank you!

4

Hi Shayne,

Thanks for the update. That’s a good next step, isolating Room B with a direct run should tell us pretty clearly whether this is wiring/interference in that room versus anything on the Roon or Nucleus side. Please let us know how it goes with the 70’ cable.

5

Vadim, thank you for your response. Allow me two days to respond. I had believed I found the issue that involved my MSB DAC renderer. Since I discovered that was incorrect.

Since then, my third diagnosis is I believe now the smoking gun has been the DC power supply (Nordost Qsource) that fed the Nucleus, the Qnet switch, and a component not related may be the cause. I discovered it was intermittently providing proper power to these devices.

I have since changed to use the OEM DC power supplies for these devices. For the last 30 hours, every single component is functioning properly, including the nucleus and Roon both.

I will respond to this ticket in two days time with an update to see if any other issues arise.

In the interim, my sincerest appreciation for your response and Assistance. Stay tuned,

Shayne Guyer

6

Hello @Shayne_Guyer ,

Thank you for your previous note of changing the DC Power supply, we’ll be standing by should you require further assistance, let us know how testing goes after!

7

Hey @Shayne_Guyer, we hope the silence means the music is back! If not, would you please let us know? We’d love to keep working on this with you. If we don’t hear back, we’ll close the thread, but you’re always welcome to reach out if you still need us. Thanks!

8

All is well with my Roon Nucleus. The entire time the issue was with the DC linear power supply that powered the nucleus and network switch. Thanks for the assistance and follow up.