Whenever my father connects to wifi my computer's internet is useless

laqe7.2

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Jan 10, 2018
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Whenever my father connects his iphone to our router (Linksys WRT1900AC) the ping of my games, browsing youtube, etc is awfully slow on my computer when i go to the internet usage app in the router manager i see that he is only using 1mbs yet when any other device uses that much or way more it doesnt affect me at all