Not only dc, the server also didn't register any ex and items that u've collected before dc. When I reconnected it back, I'm still stayed at the previous level and state, I didn't get any items that I've collected few mins ago.

I want to ask something about hacking issue. Normally I play my game by pressing "resume game" button, and only playing co-op with the friends on the friend list. But lately some strangers just happened to join my game, they're apparently friends of my friends, and they're not under my friend list.

My question is that is my game under "open to public"? How can I set my game not to open to public?

Another thing that I don't like strangers join my game is that they're noob, messed up our gaming experience, very annoying.

Thanks for the tips, at least now I feel a little bit safer with my account lol.