when u buy or make one, d wires must follow this:

By Pins, Pin 1 being left most, RJ-45 jack

Pin 1 to Pin 3
Pin 2 to Pin 6
Pin 3 to Pin 1
Pin 6 to Pin 2



Color Pin Assignment

Pin 1 Orange with White Stripe
Pin 2 Orange
Pin 3 Green with White Stripe
Pin 6 Green