Freguently disconnecting from server

Hello in a last days i had a problem with conectivity on server. Everytime when i log in to a game i had a little lags and after few minutes of playing the game will crash to log in menu with ,You Have Been Disconnected from server table´. Or when i wait in queue after few minutes the same problem with disconnecting. I never had this problem before so i dont know whats happening with server or my internet connection. If someone had this problem too help me pls.