Happens to me often as well. That window is pretty useless. Players wanted to know how long they need to wait during the release week fiasco, but they really did not code the feature properly.
At this point, it could just: "Please wait. You will be logged in as soon as possible."
I haven't waited in the Login Queue for over 60 seconds since the week after release ( and that even includes the peak login times, such as the new patch or when a maintenance ends).