Hello. My name is ***** ***** I will be assisting you today.
Can I remotely connect to your computer, so I can troubleshoot this issue with you?
its a secure session that you can see and end the session whenever you want, it's going to be much quicker to look at it
You may need a different driver as well.
If you right click on printer --> printer properties. Does it actually say 2 sided or does it say duplex? If you go to the Advanced tab what does it have listed for the driver?