league crashing (getting leaver buster)

i keep disconnecting every few games when i try to re log im hit with some sort of patch/update meaning im late to game. then again every so often when i get into game my screen stays black i can hear sounds.Then friends tell me im reconnected but i cant move or see el blacko screen. after re installing client and repairs i assume its going to be fixed but nope just happens again and im in lower priority queue can i get help with this please :c (only happens in league, csgo cod rust total war games all work fine only bugging here)
Report as:
Offensive Spam Harassment Incorrect Board