Q: Apple TV and Macbook home sharing not working

Hello, I have been trying to share my iTunes on Macbook with my AppleTV, and they both say home sharing is on. However, when I go to Computer on main menu on my AppleTV, it tells me to turn on home sharing on iTunes.

I've tried all the steps that is shown on the home sharing trouble shooting pages and I tried to turn everything off and on, I also checked if my iTunes is the most recent model, and yes it was.

Also, even though home sharing is on on my iTunes, nothing comes up on my 'Shared libraries' button...

Could anyone please give me a help to share my iTunes library on my appleTV?