Hey @J_Michael_Orszag — Thanks for reaching out, and apologies for the difficulties here.
First, so we can better understand what you’re experiencing, please provide a brief description of your current setup using this link as a guide. Please be sure to include some additionally information about your Core machine.
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.
Since noticing this behavior, have you tried power cycling your Core machine?
Thanks!
Dylan