If you are saying that Control:PC just shuts down for no reason, then I will concur. Happens all the time for me. Found that if something is playing, then it won't happen. I have changed my DNS settings, reloaded Control:PC and even rebooted a dozen times or more. Once I learned the way around it, gave up trying to fix.

Primary: MD600, MS200 (SpeakerLink to AES), Trinnov ST-2, Ayre V6-xe, Salk SS8 3x LRC.
Secondary: MC600 (whole house).
Zone one: 568.2, G57, MS200, Spatial Hologram M2SE.
Zone 2-6 (Awaiting assignment).