LoL Client glitch.

As my game started (when client closes and is connecting to the game itself), My game did the "cant connect to the game, check your internet connection" so I thought it was just a random moment and would just connect the next time I tried to reconnect. But I tried to reconnect and it was not letting me, so I decided to restart my client hoping it would fix the problem, but it only made it worse, I am now stuck on the patcher at 33% and its "calculating differences" and scanning all my files and now my team is playing a 4v5 without me in a ranked. I'm a little frustrated with this? Any help? Is there anyway I can get a loss prevented? lol

EDIT My client is fixed and all, but I lost around 18 LP for this. We won the game too. Why? This is not cool.