Loading screen won't open

Semi bump to this apparently never ending story of something seemingly dating back all the way to 2015 at least. Champs get selected, but instead of opening the loading screen you just get the 'Reconnect' button that sends you right back there. (Appeared out of the blue for me afaik, no update to Windows or League happened beforehand) Things that did jack all: Restarting PC + League Repairing League Reinstalling League Checking firewall Updating everything imaginable This general connectivity 'fix' http://forums.euw.leagueoflegends.com/board/showthread.php?t=2054218&page=1
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