I had absolutely no idea where to post this question and get a professional answer for it but here goes...

Okay, so I guess everyone whos is reading this had played online, and so I was playing LoL again tonight and my brother decided that now was a great time to go on youtube and start watching a movie, so my ping (connecting from South Africa to EU west server) is around 190-220 average, however it started spiking to 2000 and average was 600-800, so it arised the question, how ther hell can I "kick" him off for the time being

I tried reasoning it out with him but its like playing chess with a pigeon, he's studying to be an engineer, and I just cant win an argument with him, so i need to step it up a level...

I have in the past used the aireplay method by sending deauth packets but it only helped so much, is there another way of either kicking a peer of the local wifi or decreasing the lag spikes while in session or even splitting the bandwidth equally in 2 or 3,etc

What do I do

p.s. sorry if off topic, if it is not appropriate, just say which website will be able to help or assist me...