I had problems with it too. Usually helped when I reconnected after I wask kicked.
Try /PB_System. If it is set to 0 set it to 1 /PB_system 1 and vice versa.
If I were you , I would also check your PC for tronjans/viruses/adware with the actualized av.
Maybe some kind of malware is changing ET process memory .... I really can only guess.
Click here if problem persists