Roon ARC fails to access server despite modem-router configuration (ref#K2OYYP)

Network Setup

· My only router was provided by my ISP

ARC Status

· ARC is *Ready*

Describe the issue

I have configured my modem-router as advised by your intructions. The roon arc app in my mobile phone connects and recognizes my roon server . Syncing for yhe first time begins and my name appears on the "Who is listening today" phone sreen.But once I press on my name on the screen I get the following message: There is an issue with your Roon server. Your roon server is on line but there's an issue that;s preventing access.Go to the roon appfor more information."
I cannot find where to look for. Plese provide Help!!

Describe your network setup

ISP: Vodafone , generic router SHG3060, LAN cable connection, Windows 10 the server pc , Android 16 on Samsung S23 Ultra the ARC running.

@kaitanidis welcome to the Community. Are you on your home WiFi network (or the same network where your Roon Server is installed) when you are connecting your mobile ARC application to Roon for the first time? If not, can you do this and report back on what happened?

Hello @kaitanidis,

To narrow this down, we need to clarify two things first:

  1. Does this error occur while your phone is on the same local network (Wi-Fi) as your Roon Server, or only when you are outside the home network using mobile data?
  2. In the Roon desktop app (on your Windows 10 server), please go to Settings → Roon ARC and tell us exactly what message or status is shown there.

This information will help determine whether the issue is related to local network authorization or external (remote) ARC access.

1 Like

Hi @kaitanidis,

If you haven’t already, please try reinstalling ARC and then syncing fresh with your server. You’ll need to re-download any locally-saved files you have in ARC on the phone, but it will force ARC to authorize a completely new session. If there’s anything stale in the session authentication between server → ARC, this should reset it.

Please let us know if this helps. This thread will eventually auto-close without a response. Thank you!

Hi @kaitanidis,

We’re going to allow this thread to auto-close due to inactivity, but if you require further assistance, you can reactivate the conversation by simply opening a new support request. Our team will merge topic threads accordingly.

Thank you!