So I see these posts were from the end of 2015. It is now Feb 2016, and this issue is still happening for me. It started about 2 weeks ago. I would go into multiplayer store, and it would say its downloading date but it just freezes and I have to exit the game completely and restart it. Its annoying to loose a great party your in and have to wait again for a new one. Its def not my internet connection. So I saw some troubleshooting tips, and tried them, but still having the issue. I reported the bug, if it is a bug. So hopefully someone gets back to me and actually fixes this. I play on Xbox One.