LwIP Ethernet in STM32F4 working in STM32CubeIDE but not in IAR

[MGogr.1]

The original question is here

I too have experienced something like this with my STM32F407ZET controller.

TCP Client mode was not working in IAR whereas it worked CubeIDE.

Dont know the reason, but had to migrate my whole code to IDE.

[FBL]

Hi @MGogr.1 

Would you provide your full setup?