problem of connection

hey there i have a big problem and i didnt know from where it is. i was launching an aram game all was ok got my champ choose masteries etc but when the game launch i just have the screen "game is still in progress" for 10 min then i decide to disconnect from the client and reconnect but the same screen come to me and i should have the screen with the button "reconnect" but its not since 10 other minute . its not a problem of connection cause i was listening to music in the same time . if anybody know this bug pls help me ^^