Source computer: Windows11 ,SWYH 1.5.0 (PCM/L16)
Renderer computer: Windows11 ,foo2000 2.0[x86](UPnP/DLNARenderer,Server,Control Point 0.99.49 foo_upnp)

1. Keep source computer silent.
2. Stream to another computer.
3. An error message appears after 15 seconds.
   
4. swyh automatically stops streaming.

Here are the solutions so far:
Loop an empty music file of any length on source computer.

:D