Originally Posted by nyerkovicfm
This happens when you are not moving your ship for a certain period of time, it is in place to prevent the obvious leecher, but it catches other people sometimes.
It happens most frequently with CVs since they tend to stay in one place and not move, but it can also happen with BBs if they are moving in a straight line for a while.
More accurately, is that you haven't done anything toward the battle. It can be moving ship, controlling planes, shooting, moving the guns etc.
Note if your ship is MOVING but you aren't doing anything else, it will also happens. Best way to image it is if you have your hands off the keyboard, you get retreated.
Originally Posted by cambsguy
just a small correction to above answers, its for key input only so you have too shoot, speed up or down to stop this happening, just changing course as its a mouse input will(or at least used too) get you retreated.
If you clicked to change course, its not going to retreat you, but if you only move around the map with your mouse, you will.