90k every time I play Frontlines

Every game that I've played since I started playing frontlines two days ago, I have been 90k'ed out of the game while running out of base. It doesn't happen during battle, only when I am running out of base to flag. I don't lag and I can log back in without restarting my client. And it has happened more than once during a game, always when I am running out of base. This has never happened when I am doing anything else in this game, only Frontlines.

I've already been kicked from a game because of this... does anyone know why this is happening and how I can prevent it ?