Hi @Krisztian_Soos,
What is the model/manufacturer of the WiFi antenna? WiFi is not something that we extensively test on ROCK, we have a report of this dongle working (WiFi dongle for ROCK?) but ROCK is typically meant to be connected via Ethernet to the router.
Is there something preventing you from connecting your ROCK directly to the router and then using some sort of Roon Bridge (Allo USBridge/Sonore Micro-UltraRendu) to facilitate any USB connections and leave the Node/PS Audio on Roon Ready mode?