vegos:
That was the problem.
I replace A0 & A1 with 2 other analog pins, and everything works fine
I wonder why the Ethernet Shield connects anything to A0 and A1. Can't wait to see what strange connections my Ethernet Shield Clone has. 
vegos:
That was the problem.
I replace A0 & A1 with 2 other analog pins, and everything works fine
I wonder why the Ethernet Shield connects anything to A0 and A1. Can't wait to see what strange connections my Ethernet Shield Clone has.