Arduino +IGBT

I have a problema. My design is working good in simulation (Proteus) but dont wrk good in real.
IGBT switch ON in real but dont switch OFF
Why?
I paste the diagram
Thank you so much

esquema.pdf (49.9 KB)

NOW IS OK
the transistor was moved and lost the aislator.
Thank you so much and sorry

If you want to use PWM you should make R3 220 ohms and R2 470 ohms, which gives
better switching times - IGBT gate is high capacitive load and it will take time to switch
if driven too weakly

Thank you so much I will changue the resistor value