I can play online and use all of the xbox live features without any issues except for joining any parties or games on black ops 2!!
i have already confirmed that i have open NAT. i use connectify hotspot pro on my laptop to connect to the internet. I have never had this issue in the past, and now all of a sudden i cant join my friend's parties or games! Any help would be Greatly appreciated!
I am extremely frustrated by this, i have been searching through forums for hours, have tried every proposed resolution and still no luck!