What best describes your playback issue?
· Music doesn't start when I press "Play"
What type of Zone is affected by this problem?
· *Network Zones* are affected.
Is the affected network Zone connected with Ethernet or WiFi?
· Ethernet
Does the issue affect all file formats?
· The issue affects *multiple/all* file formats.
Does the issue happen with local library music, streaming service music, or both?
· *Both streaming and local* *library* music are affected.
Do you encounter any playback errors with the "System Output" Zone?
· The System Output has *no problem*, it's only my other Zone.
How is the affected Zone connected to your RoonServer machine?
· Network - Ethernet
Which network audio protocol is the Zone using with Roon?
· RoonReady
Does the device show up at all in Roon Settings -> Audio?
· Yes, it shows up there, but it isn't Enabled
Does the "Enable" button unlock the Zone?
· I pressed Enable, but the Zone remains disabled
Does the device play audio from another source when using the same connection?
· The device has no problems with another audio source
Have you checked that Roon is whitelisted in any firewalls?
· I've checked the firewall and the issue remains
If the device has multiple output options, do the other options work as expected?
· Only one output type is affected while the other output type works as expected
Is the device using the latest firmware as per the manufacturer?
· Firmware is up-to-date but the issue remains
Do you have an approximate timestamp of when the issue last occurred?
· Starting about a month or two ago
What are the make and model of the affected audio device(s) and the connection type?
· Roon Core: Mac mini; Endpoint: Lumin U2; via Roon Ready
Describe the issue
Dear Roon Support Team, I am reaching out to report a persistent playback failure involving my Lumin U2 streamer.
[The Problem]
When attempting to play music through the Lumin U2 via Roon Ready, the system fails to initiate playback.
[Diagnostic Steps Taken]
I have performed several tests to isolate the issue:
Lumin App Success: Playing music directly via the Lumin native app works perfectly, ruling out hardware or basic network failure.
Other Endpoints: Roon playback works flawlessly on my other streaming amplifiers within the same ethernet network. This confirms that the issue is isolated strictly to the interaction between Roon and the Lumin U2.
[System Details]
Roon Core: Mac mini M1
Endpoint: Lumin U2
Connection: Ethernet
[Community Cases]
I have noticed similar cases documented on the Roon Community forum recently, which suggest a potential compatibility bug:
https://community.roonlabs.com/t/roon-fails-to-playback-music-and-loses-connection-with-lumin-u2-mini-ref-gnkqqc/310541
https://community.roonlabs.com/t/playback-issue-with-lumin-u2-after-roon-update-ref-08fh23/314770
I would appreciate it if the technical team could investigate this handshake issue. I can provide logs if necessary to help your team diagnose the root cause. I look forward to your guidance on the next steps.
Describe your network setup
Ethernet router connecting both Roon core (Mac mini M1) and Streamer (Lumin U2)