Hello @STea,I found the problem that it seems NUCLEO-H563ZI's Ethernet circuit (LAN8742) is designed to work with STLINK only(what i mean is lan8742 can not have reset without ST-LINK)How to reproduce:It does not work with external power supply, beca...

Hello STea,I am facing the same issue. Im using IAR EWARM,  Project was built with STM32CubeMX V6.8.0 using STM32Cube FW_H5 V1.0.1. Im using NUCLEO-H563ZI and NetXDuo TCP Echo Server.DHCP is disabled.Works at Debug mode, does not work after exiting d...