I have an odd issue. I am playing with full bars(three). Then all of a sudden it goes to one red bar and my character starts moving on its own. If I try to fire a gun the bullet moves like it was in the matrix. Sometimes it does this for five or six minutes before it eventually kicks me to the log in screen. Then it is a 50/50 if I can log in and return to where I was previously. Though at that point I have lost ten minutes of game time. So either I am returning dead, or my party has moved WAY forward. Or they kick me because they come to a point where everyone needs to stand on the button, or go down the elevator.
When this happens everything else that uses internet goes nuts. Either saying I have no bandwidth or it just is disconnected. So this leads me to believe that something in your game is taking up so much bandwidth that it raises the ping to such a point that I get the odd movement error and lag on projectiles. Then it makes it bad enough for force a log out.
I would like to know if I am the only one dealing with this. What is up with it? I have more than enough bandwidth and computer to play this game six times over at once. Not that I ever would but still. So this should not be an issue. I have tried uninstalling and reinstalling a few times.
The game tends to hang below the 50 kbit/sec mark in both directions, so I doubt it's clogging your tubes.
If your on a home network with a router it may need a firmware update or you should try opening up the ports as listed in the Technical Help Sticky.
(Also there's 4 bars worth of connection)