Wifi disconnecting only when playing League

So ummm...my internet works just fine and when it actually works with League I get steady 72 ms. Now the problem is that whenever Im in a game or in loading screen my wifi loses connection to the internet and I have to **get out** of the game disconnect and connect again. Yes **I have **changed my wifi's channel to multiple one to see which works the best, still disconnecting. I've done my research and I have no clue what is going on so I guess....Help.{{champion:555}}
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