Unable to connect to server. Please check your network connection and attempt to reconnect.

I attempt to begin a game and after a while of my mouse being a blue circle and stuck on a black full screen the game gives me the command to either try again or to disconnect. I tried turning my computer on and off, rebooting League, changing the wifi I'm connected to etc., and I'm sick of this. This is the third fucking time Riot, it's just a retarded error, please just fix it, please. I've seen other threads on this but they are from a while ago so I wanted to rehash it. Please Riot, it can't be hard, please.