Constant Game Crash

Okay so, I finished playing a game of ARURF yesterday, everything was perfectly fine, I then decide to queue up in ranked with 2 of my friends, only to have my game crash right after champ select. After that I lost 20 LP (Had 69 : ^) ) and I got a leaver buster. I couldn't even connect back into the game cause it kept saying, that my internet connection wasn't working, BUT IT WAS PERFECTLY FINE. Someone please tell me a solution to this, I have been trying for hours only to achieve nothing. Rito please fix your game.[zombie-nunu-bummed]