League kills internet

So since the latest patch, every time I start a game, either right in the beginning or after 15 minutes of the game, my whole internet crashes, it's just with League of Legends, no other game does this, it just kills my whole internet on the specific computer and the only way to turn it back up is to restart my computer which takes awhile, it's kind of angering because I have been placed in low priority queue for 5 games now just because I was afk for 3 minutes in a game for something I don't really know how to fix, anyone have any tips or anything? I've already tried Hextech Repair Tool but that didn't help at all...
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