You must download and import the Seeed Studios library for the w5200/w5500.
Then change the include to
#include <EthernetV2_0.h>
Wiznet has a library for the w5500 also, but I have not checked it yet.
You must download and import the Seeed Studios library for the w5200/w5500.
Then change the include to
#include <EthernetV2_0.h>
Wiznet has a library for the w5500 also, but I have not checked it yet.