Thank you Jasonl for your answer.
With or without jumbo frame, result is the same (unfortunately).
Another idea please ?

Thank you Nickk for the answer.
Message is exactly :"Unable to play channel : Stream start failed" with HDHomeRun windows application (V20251227(App) / 20260219(UI)

Hi,

I'm experiencing a 'Stream start failed' error with my HDHomeRun HDHR-EU when connected through a Netgear GS728TPPv2 managed switch (firmware 6.0.10.26). Everything works fine when I replace it with a dumb switch or connect the HDHomeRun directly to my PC.

**Setup:**
- HDHomeRun HDHR-EU Device ...