Intermittent Qobuz Playback Failure with Infinite Retry Loop in Roon (ref#QOS8SY) [Investigating]

Hi! What’s not quite right with Roon?

· None of the above quite fits

None of the above quite fits

· None of these quite match

Tell us what's going on

· **Issue:**
Qobuz streaming intermittently fails. When pressing play on a Qobuz track, playback never starts. The UI shows an endless loading state with no error message. Local library playback works perfectly.

The Roon Server log shows the FTMSI module entering a rapid infinite retry loop trying to fetch block 0 from the Qobuz CDN (Akamai). The CDN responds HTTP 200 but delivers 0 bytes of audio data, causing Roon to immediately retry — hundreds of times per second:

```
03/18 17:35:41 Debug: FTMSI-B-OE qo/24B40254 rid:87 request ended -- first block: 0 blocks read: 0 download speed: -256kbps response time: 42ms
03/18 17:35:41 Debug: FTMSI-B-OE qo/24B40254 interrupted req 87; missing block 0
03/18 17:35:41 Debug: FTMSI-B-OE qo/24B40254 created new req 88 for block 0 p 0; active requests 1
03/18 17:35:41 Info: FTMSI-B-OE qo/24B40254 rid:88 response took 64ms
03/18 17:35:41 Debug: FTMSI-B-OE qo/24B40254 rid:88 request ended -- first block: 0 blocks read: 0 download speed: -256kbps response time: 64ms
03/18 17:35:41 Debug: FTMSI-B-OE qo/24B40254 interrupted req 88; missing block 0
```

This loop continues indefinitely until I manually stop server.

**What I've tried:**
- Logging out and back into Qobuz within Roon
- Restarting Roon Server (systemctl stop/start)
- Clearing Roon cache (rm -rf RoonServer/Cache) and restarting
- Changing DNS: tested Quad9, Cloudflare, Google
- Verified Qobuz app streams perfectly from the same network/IP
- Verified local library playback in Roon works fine


**Behavior pattern:**
- Sometimes Roon recovers on its own after many retries and requests a new streaming URL
- This started approximately 5 days ago. No changes were made to my network or Roon setup.

**For remote diagnostics:** Issue reproduced today March 18 at 17:35 Chile time (20:35 UTC).

**Other users reporting the same issue:**
- https://community.roonlabs.com/t/qobuz-streaming-album-spring-awakens-by-lawson-rollins-wont-play-in-roon-ref-97y80i/317233/6
- https://community.roonlabs.com/t/roon-server-download-loop-causing-excessive-requests-to-akamai-ref-61xrft/317235/5
- https://community.roonlabs.com/t/random-tracks-wont-stream-from-qobuz-through-roon-after-update-ref-ffo2dh/317096

Tell us about your home network

· Unifi gateway / switch

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13 posts were merged into an existing topic: Roon won’t play certain tracks from Qobuz, gets stuck on progress bar (ref#K9XYO0) [Ticket in]