Hi @Peter_Mrozik,
That’s not normal, the core should only require being logged into Roon once … so I’m moving you topic over to #support.
In order for Roon’s @support team to 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 they can have a clear understanding of how your devices are communicating.