I have an authenticator (the app) and it hasn't bothered me until i began multiboxing.
Not only do i have to enter it every time i log in, i have to enter a different code for each account. Since the code only updates every 30 seconds or so, it takes about 2:30min to get logged in.
And to worsen the situation even more, half of my accounts just get disconnected after maybe 20 seconds after logging in, requiring a new authenticator code...

When i want to log into the battle.net website, the authenticator has this kind of "one-touch" feature. Can't this be enabled for wow? So i press one button in the app to confirm all logins?