This is an image of my Ping, down speed and up speed. My PC, which has an AMD R9 380X and an i5 4460 is hooked up to my router through ethernet, and my framerates are way above 60 in every game.
I know it isn't the refresh rates as it only happens on multiplayer games. The game (CS:GO, Rust, e.c.t.) will pause for half a second every 4 or 5 seconds, and then it may lag horribly every 30-40 seconds.This happens any time of day, whether someone else is using my internet or not. Another problem is that on some games that limit ping, I get kicked for having too much ping (upwards of 300), despite the servers being EU based.
This doesn't happen with any of my friends in the same games, even though some of them have the same or very similar internet packages. Not only that, but I live in the same area, so this shouldn't be happening.