Hi Geraldo,This is not board depended, this is error with LWIP code generator - check Frederic response, it contain all needed informations. You need to put values into i..e IP_ADDRESS array, defines are not enough. Can you please share your code?

Thank you very much. My board reply to ping and I'm able to send UDP packet. With optimalization flate Ofast, I'm able to send payloads with 12.5 MB/s (yes, mega bytes, at least this is what Wireshark computes).

I found a workaround - if you add a FreeRTOS in Cube, somehow it start to work. Unfortunally I cannot use FreeRTOS, so I still struggle to make it work.

I have the same problem - today I wanted to play with my board, but it isn't working at all. I used my old code prepared in Keil and I was able to ping board, so PCB is working fine. I did the same steps in Stm32CubeIde - I added only LWIP and disabl...