Login Issue on Roon with Stuck Session and Core Discovery Failure (ref#FB6OST)

Support
1

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

· Nucleus

What kind of device are you using to perform the login?

· Android

Where are you trying to login?

· I can't log into Roon

Please try to restart your Roon Server by closing the Roon Server app in the taskbar (MacOS), task manager (Windows) or rebooting your Roon Server machine.

· No, the issue remains the same

Different device

· I cannot switch to a different device

Are you still facing the issue on the different device

· No, the issue remains the same

Record the timestamp

· Subject: Urgent Assistance Needed - Unable to Log In to Roon Account Due to Stuck Session and Core Discovery IssueDear Roon Support Team,I am reaching out for urgent help with my Roon account as I am completely unable to log in and am continuously receiving security alert emails.Here is a detailed description of what happened:I use Roon at my workplace with a Roon OS device (Nucleus One) as my Core. Normally, I connect the Core and my tablet using a network switch and a wireless router.Due to network traffic issues caused by the wireless router, my workplace asked me to stop using it. To comply, I turned off the router and tried connecting the Core directly to my work PC via the network switch.I logged out of Roon on my tablet, installed the Roon app on the work PC, and logged in. Shortly after logging in on the PC, a malfunction occurred (possibly due to firewall or other issues), preventing me from properly logging out. In the end, I had to uninstall the app without logging out.Now, when I revert to my original setup (switch + router) and try to log in again on my tablet, the login screen keeps appearing repeatedly (or loads endlessly), and I cannot complete the login. I also keep receiving security warning emails from Roon.I have already emailed Roon support about this, but have not received a response yet.To resolve the stuck session, I tried reinstalling the Roon app on the work PC to log in and properly log out. However, when I launch the Roon app on the PC, it gets stuck on the "Looking for your Roon OS device" (Core discovery) screen and does not progress further.I suspect the account may have been temporarily blocked or flagged due to multiple login attempts from both the PC and tablet, or because of the incomplete logout from the PC.Could you please assist me in resolving this? Specifically, I would greatly appreciate help with:Clearing any active or stuck sessions on my account (especially from the work PC).
Stopping the ongoing security alert emails.
Resetting whatever flag is preventing normal login and Core discovery.
Allowing me to log in normally again on my tablet.

Thank you very much for your prompt assistance. I look forward to hearing from you soon.Best regards,

Describe the issue

Subject: Urgent Assistance Needed - Unable to Log In to Roon Account Due to Stuck Session and Core Discovery IssueDear Roon Support Team,I am reaching out for urgent help with my Roon account as I am completely unable to log in and am continuously receiving security alert emails.Here is a detailed description of what happened:I use Roon at my workplace with a Roon OS device (Nucleus One) as my Core. Normally, I connect the Core and my tablet using a network switch and a wireless router.Due to network traffic issues caused by the wireless router, my workplace asked me to stop using it. To comply, I turned off the router and tried connecting the Core directly to my work PC via the network switch.I logged out of Roon on my tablet, installed the Roon app on the work PC, and logged in. Shortly after logging in on the PC, a malfunction occurred (possibly due to firewall or other issues), preventing me from properly logging out. In the end, I had to uninstall the app without logging out.Now, when I revert to my original setup (switch + router) and try to log in again on my tablet, the login screen keeps appearing repeatedly (or loads endlessly), and I cannot complete the login. I also keep receiving security warning emails from Roon.I have already emailed Roon support about this, but have not received a response yet.To resolve the stuck session, I tried reinstalling the Roon app on the work PC to log in and properly log out. However, when I launch the Roon app on the PC, it gets stuck on the "Looking for your Roon OS device" (Core discovery) screen and does not progress further.I suspect the account may have been temporarily blocked or flagged due to multiple login attempts from both the PC and tablet, or because of the incomplete logout from the PC.Could you please assist me in resolving this? Specifically, I would greatly appreciate help with:Clearing any active or stuck sessions on my account (especially from the work PC).
Stopping the ongoing security alert emails.
Resetting whatever flag is preventing normal login and Core discovery.
Allowing me to log in normally again on my tablet.

My Roon account email is: (moderated)Thank you very much for your prompt assistance. I look forward to hearing from you soon.Best regards,
[Your Full Name]

2

Hello @sogno00

Thank you for the detailed explanation — that helps clarify the situation.

First, to address your main concern directly:

Roon does not block or suspend user accounts due to login attempts, incomplete logouts.

There is also no concept of a “stuck session” on our side that would lock you out of your account. You do not need us to manually clear sessions or reset any flags.

Based on your description, this is not an account issue — it is a Core discovery / network topology issue caused by the recent changes to your setup.

When you connected the Nucleus directly to the work PC and later changed the network again, Roon is now unable to consistently discover the Core on the local network.

What to check next

On the device where Roon is stuck or looping on the login screen:

  1. Launch Roon
  2. When prompted, tap or click “Select a different Roon Server”
  3. Let us know what you see there:
  • Do you see your Nucleus One listed?
  • Do you see any other entries (or nothing at all)?

This screen is key — it will tell us whether the Core is being discovered correctly.

Important notes

  • Uninstalling the app without logging out does not break your account
  • Multiple login attempts from different devices do not block access
  • The issue is almost certainly related to network discovery, not authentication

Once you confirm what appears under “Select a different Roon Server”, we can guide you precisely on the next steps to restore normal operation.

3

Hi @sogno00,

We wanted to check in and see if you were able to run through the above, thank you! :folded_hands:

4

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