Whenever I sit on a long flight somewhere I get dc'd upon landing if im tabbed out of game.
It takes me back to log in screen and says "you have been disconected form the game"

If you look back on my past posts Im pretty sure I have posted before about this when cata first launched and it is still happening. in fact here it is

http://eu.battle.net/wow/en/forum/topic/927075487#3

any idea if this will ever be sorted