Check if the server is upīefore performing any troubleshooting steps, it's worth checking the current status of the League of Legends server that you are trying to connect to. You have to login into the region where you currently have your account, since any given account can only be active in one region at a time. After clicking on the League of Legends icon (but before hitting Play!), check the region that you are logging into in the top right corner of the window. This is a very simple thing to overlook, especially when you are rushing to jump into Summoner's Rift. If your operating system or network connection requires its own specific settings for the default browser to work, you may want to contact your system administrator before making significant changes.