Remotes unable to connect to Roon Server via SonicTransporter (ref#B108B5)

Support
1

Is Roon Server running?

· Yes, Roon Server is turned on and running.

What do you see on your screen?

· "Looking for your 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 *WiFi*

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?

· *Prebuilt Branded Roon Server* (SonicTransporter, Innous, Merging...)

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

· None of the above

Describe the issue

Multiple Remotes cannot connect. All Remotes reinstalled. Using SonicTransporter 2.7, Roon Server 2.65, UltraRendu. Worked fine until May 2026 and then "Looking for your Roon Server". SonicTransporter update seems not to stick.

Describe your network setup

Remote to Wifi to hardwired SonicTransporter to UltraRendu to DAC.

2

You should perform an update of your SonicTransporter to 2.8. This also is an outdated version, but this update you can do yourself.

The latest version of Roon will only work with SonicTransporter 2.8 or higher.

Instructions are here, but be sure to perform the procedure exactly as stated.

3

Hello @Jim_Magson,

Thank you for reaching out. I know it is incredibly frustrating when a stable system suddenly stops connecting, especially when you have already tried reinstalling the remote apps.

A huge thank you to @Arlen for jumping in with the exact right solution!

Recent updates to the Roon software introduced new underlying system and security requirements. Because your SonicTransporter is currently running OS version 2.7, it lacks the modern software libraries needed to execute the latest Roon Server build. Your Roon Server is essentially failing to launch in the background, which is why your remotes are stuck indefinitely “Looking for your Roon Server.”

Next Steps: To get everything back up and running, please follow the guide Arlen linked to update your SonicTransporter’s operating system to version 2.8 (or newer).

Once the SonicTransporter OS is updated, the Roon Server process will have the libraries it needs to successfully start, and your remotes should immediately see it on the network again. Please let us know if you run into any trouble during the OS update process!