Another player with the same... problem... http://nw-forum.perfectworld.com/showthread.php?360001-Player-can-be-kicked-after-or-during-a-battle-(and-BOSS-fight)
This is ... dude, the same problem happen to me and my team and i report here on this topic. http://nw-forum.perfectworld.com/showthread.php?359921-Kick-in-the-last-boss-in-the-DD-event&p=4571411#post4571411