Hey @Matthijs_Bakker — Thanks for the report!
To start, may I kindly ask that you please provide a brief description of your current setup using this link as a guide.
Make sure to describe your network configuration/topology, including any networking hardware currently in use, so we can have a clear understanding of how your devices are communicating.
Can I also ask that you verify the following:
- Since noticing this behavior, have you tried power cycling your Core machine, audio zones, and networking hardware?
- Is this happening for all zones?
Regards,
Dylan