w5100s loopback OSError

Hi,
I tried to run raspberry pi pico with Wiznet 5100s . I installed step by step the library and when i run loopback example from github it shows OSError : 4 and this OSError : changed every time i run the code.

Can anyone share me the connection of pi pico to wiznet w5100s and the ethernet cable connection.

is there any solution ??