Seems like that if you are in combat (which is your 90% of the time while standing still inside your spawn with nothing in the range of a mile but a skeever under a rock) you cannot log off the "normal way" Meaning going into the menu and proceed to click "quit"
Only happens to me?
I meme, but my memes are so truthful they hurt
-Elder Nightblades Online
Want competitive pvp while being outnumbered? Tough luck, the devs clearly said you have to die in those situations