Fix how the client interacts with firewalls.

LeagueClient.exe, LeagueClientUx.exe, LeagueClientUxRenderer.exe and League of Legends.exe are all allowed through my firewall without any port restriction, Riot. You don't need anything else to access the internet, and in my case trying to download files through a System process is not the wisest because A: it gives me a "we're trying to reconnect" error (because it doesn't work) and B: it doesn't work.

You need to refine how your crappy client interacts with peoples' meticulous firewall setups.