I'll be playing normally, chatting in the lobby just fine for like 20 minutes. Then I go into an advanced quest and BOOM... 630 error. I don't get disconnected from Xbox live or party chat And the game let's me right back in. I do the same thing, spend like 5-10 minutes getting ready for the next run. And 630 pops up AGAIN when I enter the quest.... Eating my capsules in the process.

All of my ports are open, this is the only game I get connectivity issues with. What is going on?

This does seem to only happen during peak hours, but what do "I" always get kicked out?