How do i pass the NIS 2012 firewall with my Xbox 360

im trying to use windows media center on my xbox

 

when i go to SELECT MUSIC and then my computer

 

and then i wait for it to connect

 

the firewall is blocking the connection

 

i went to Windows FIREWALL and it told me Norton Internet Security is firewalling

 

and im stuck trying to make my xbox pass the god damned firewall

 

STEPS BY STEPS

NO LINKS