GFWL: Unable To Join To Game Session

[shocktheripper 0]

I'll start off by saying that I've already tried everything and nothing has worked. Whenever I try to join the game that my friend hosts, or vice versa, I always get this damn message: '' Unable To Join To Game Session ''.

 

To be more specific, this summarizes my issue;

 

 

 

1. Friend hosts, I cannot join.
2. I host, friend cannot join.
3. I find public game and join (can see other players), he cannot join.
4. Friend finds SAME public game and joins (can see other players), I cannot join.
5. Mutual friend hosts, I can join, friend cannot join.
6. Mutual friend hosts, friend can join, I cannot join.
7. Mutual friend finds public game, I can join, friend cannot join.
8. Mutual friend finds public game, friend can join, I cannot join.

 

Hope you guys can help me, I'm freaking out. 

[shocktheripper 0]

Is there anyone out there willing to help me?