WIZnet WIZ550io

So, sorry for the late answer.

I tested some issues.

I recommend you connect your WIZ550io's RDY pin to espruino's any GPIO pin and do ether.getIP() or ether.setIP() after its value turns to '1'

I check the RDY pin, but after the value was '1', nothing changed. DHCP is still not working. At the moment, i'm not able to set a static ip address at this place (university network), but i will test it at home again.

If it is, can you try connecting it to an LED instead and test it with digitalWrite(B2,1)? It's possible that your Espruino board has a bad connection.

I test the B2 pin with a LED and it works well. So the connection is definitively ok.

Well, i don't know how i get this module to getting work.

Any other suggestions? Test issues?