How to track WiFi traffic?

Question

WiFi

Hello everyone, I have a problem, we have a wifi network to which 4 people are connected, the problem is that some people download, and thus the speed drops.
How can you track the traffic of everyone, find out who transmits and gives how much kb / s?

Answer 1

This is homemade, just ask, no need to come up with complicated ways, you just need to ask who downloads porn.

Answer 2

How is the network set up? what equipment?

Answer 3

How can you track the traffic of everyone, find out who transmits and gives how much kb / s?

Set some minimal shaper