Can't connect to game after champ select.

Every time i try to start a game, no matter if ranked, blind or even practice tool, the game doesnt start after the countdown. It has been working before, and just stopped yesterday. I have tried using the Hextech Repair tool, and tried changing my ipv6 config which didnt help. I have also tried to remove and reinstall the game which did also not work. I am at a lose of what to do next?