How do I make my roommate's phone disconnect from the wired network?

It is recommended to communicate with your roommate and tell him that playing games at night will affect your sleep. If the communication is really ineffective, you can buy a small wifi jammer and only turn it on when you sleep at night. If the signal is not good, you will naturally not play games. . However, it is still recommended to communicate first, so as to avoid unpleasant roommates after the installation of the wifi signal jammer is discovered.