@Lajos_Busanszky, to receive appropriate help, it would be really helpful if you could complete the template included in your opening posts, and also provided below. Please be sure to include details of your core, network, storage location of your media files, and any messages displayed by Roon. Thank you.
Roon Core Machine
<!β-Include your operating system and machine info (Model, CPU, RAM)-β>
<!β-Write below this line-β>
Networking Gear & Setup Details
<!β-Your network gear (model of routers/switches) and if on Wi-Fi/Ethernet, are you using VPN-β>
<!β-Write below this line-β>
Connected Audio Devices
<!β-Specify what devices youβre using and their connection types, like USB/HDMI/Chromecast, etc.)-β>
<!β-Write below this line-β>
Number of Tracks in Library
<!β-Tell us how large your music library is, e.g. β30,000 tracksβ-β>
<!β-Write below this line-β>
Description of Issue
<!-βTell us about the problem youβre having in as much detail as possible. Screenshots are always appreciated!-β>
<!β-Write below this line-β>
Including these details in your first post helps resolve your issues faster.