I have found Control:Mac to be less than robust when with dealing with some network issues, resulting with a sudden app exit. Changing from wireless to wired for example causes Control:Mac to exit.

Have you tried this with a wired network connection?

Meridian owner since 1992
Prime & PSU, Focal Elear headphones, Roon (ROCK 8Gi5 NUC), Explorer 1 & 2, F80. 200/203, various Sonos (via Roon).