Ethernet only connect when usb is connected and used by sender

[semos2k]

Hi, i using a board stm32f407vet6 and compiled version of the grblhal activating ethernet, that works correctly when connect first the usb cable and iosender for check boot.

But when not connect the usb cable and power the board from PSU try to connect iosender using the ip not work, testing using ping the ip reponds.

GrblHAL 1.1f ['$' or '$HELP' for help] [VER:1.1f.20240204:] [OPT:VNMSL,100,1024,3,0] [AXS:3:XYZ] [NEWOPT:ENUMS,RT+,ES,SED,ETH] [FIRMWARE:grblHAL] [SIGNALS:HSE] [NVS STORAGE:*FLASH] [FREE MEMORY:30K] [DRIVER:STM32F407] [DRIVER VERSION:240205] [AUX IO:1,0,0,0] [WIZCHIP:W5500] [MAC:56:34:12:dc:08:00] [IP:192.168.10.135] [NETCON:Websocket] [G54:0.000,0.000,0.000] [G55:0.000,0.000,0.000] [G56:0.000,0.000,0.000] [G57:0.000,0.000,0.000] [G58:0.000,0.000,0.000] [G59:0.000,0.000,0.000] [G59.1:0.000,0.000,0.000] [G59.2:0.000,0.000,0.000] [G59.3:0.000,0.000,0.000] [G28:0.000,0.000,0.000] [G30:0.000,0.000,0.000] [G92:0.000,0.000,0.000] [TLO:0.000,0.000,0.000] [PRB:0.000,0.000,0.000:0]

thks.