failed to connect keeps appearing

I keep getting dc'd and when i try to connect it says "unable to connect to the server. Please check your network connection and attempt to reconnect to your game." This has been happening over the last two patches. My pc has ran league without a hiccup since season 2. I feel comfortable saying performance wise it's probably in the top ten percent of users. Internet connection is fine, firewalls fine as well. Has to be a problem on your end guys.