Intermittent Connectivity of Android Devices with Nucleus One (ref#PCJJLW)

Is Roon Server running?

· Yes, Roon Server is turned on and running.

What do you see on your screen?

· "Waiting for your Roon Server"

What happens if you press the "Select a different Roon Server" button?

· I don't see Roon Server.

Please try to restart your network setup by unplugging, waiting 30 seconds and then replugging in your networking gear.

· No, the issue remains the same

Please select how you've connected your Roon Server to the internet

· Roon Server is connected by *Ethernet*

Have you checked your firewall settings to ensure that Roon is allowed through?

· Roon still won't connect even after checking this aspect

Have you verified that Roon Server is on the same subnet as your Remotes?

· My Remotes and Server are on the same subnet and I still can't connect

Sometimes the issues can be resolved with a reinstall of your Roon Remote app. Let's try to perform a reinstall and see if it helps.

· I've reinstalled the Roon Remote but it did not help

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

· *Nucleus*

Select any of the following components that are present in your local network setup

· None of the above

Describe the issue

I just installed the Nucleus One last night after running Roon Server for several years on my HP laptop PC. I spent all day today trying to get my Samsung 23 plus phone and Samsung Tab S 8 tablet to work as a remote. My HP laptop running Windows 11 works fine but my 2 Android devices take 5 to 15 minutes to connect which is a total nightmare. I will have to return the Nucleus if Android doesn't work as a remote. I have a gigaspire U6 router and the Nucleus is eternity direct to the router. I deleted Roon on both devices and reinstalled and it worked right away on both devices. Tried again about 15 minutes later and the Android devices just hang saying waiting for Roon server to connect. It's marketed as plug and play but my experience today has proved that's not the case. It's torture trying to get my Android devices to connect consistently. Can I get help to solve the issue or should I request a return?

Describe your network setup

Gigaspire U6 router directly connected to my new Roon Nucleus One server. HP laptop PC running Windows 11 works fine but two Android devices are delayed finding the Nucleus

Hello @jeffreykweaver,

Thank you for the detailed report — and we understand how frustrating this behavior can be. We currently have a similar active investigation involving Samsung Galaxy Tab A8 devices, where Android remotes take a long time to discover Roon Server or fail to reconnect after being backgrounded. Your symptoms match this pattern very closely.

Before we proceed, could you please confirm two things:

  1. When you previously ran Roon Server on your Windows 11 PC,

did your Samsung phone and tablet connect instantly and reliably, or did you notice similar delays?

This helps us understand whether the issue is tied specifically to the Nucleus One or to recent Android OS behavior.

  1. Would you be comfortable capturing ADB logs?

This is optional, but extremely helpful.

The process involves:

Connect your PC to Android phone and install ADB (instructions are here (all platforms)). Then:

  1. Type adb shell in terminal
  2. Type logcat v (ref: Logcat command-line tool  |  Android Studio  |  Android Developers)
  3. Reproduce the problem and let terminal print logs for 3-5 more seconds
  4. Select output from the moment you started the reproduction of the bug till the very end
  5. Upload the log here and let us know once you have done so:

https://workdrive.zohoexternal.com/collection/8i5239cc05950ac07456889838d9319545a82/external

If this is convenient for you, we can provide the exact steps. If not, that’s completely fine — you would simply need to wait for our R&D team to finalize the fix, and follow the release notes.

Let us know what works for you, and we’ll take it from there.

Both devices worked fine for several years without any delays when I ran Roon Server on my laptop PC.

If I reboot Nucleus Server both Android devices connect right away. If I then close the app and attempt to relaunch it, I get the significant delay.

I will look at the log tool later today to see if I can load it.

Thanks,

Jeff

Hello @jeffreykweaver ,

Thanks for confirming that aspect. Do let us know once you’ve had a chance to look into the adb logs and we can proceed from there! Please, do let us know once uploaded so that we can check. Thank you!

I just uploaded the log file, hoping it reveals what is going on and a method to fix it. Let me know if you need anything further from me. Thanks!!

Thanks for uploading the adb log @jeffreykweaver!

In the meantime, our team is also in the process of acquiring similar hardware to attempt to reproduce the same issue in-house.

This may take some time, so we really appreciate your ongoing patience here! :folded_hands:

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