Hi @KAB,
So we can better assist 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 you provide some specific examples of what you’re seeing here? What are you trying to playback? How long does it take (in seconds)?
Are all remotes losing connection to the Core or just some? Can you provide some more info here?