Experiencing the same situation. On Crystal-Coeurl , queue starts at around 3.800 and once you get around 3.500 or even as low as 2.600, I get disconnected. This has happened every single time I have tried to log for the past 3 hours or so.One thing I noticed is that the queue suddenly stops. Every time your position is updated, you see the screen flash and the new queue position shows up. Prior to disconnections, the queue doesn't change with time, remains the same and that's when it disconnects.

This is a situation that is very annoying and while this can be overlooked on patch day, you guys need to figure out a way to solve this.