Why does wi-fi turn off in a laptop after starting games?

Question

WiFi

When I start the game from the laptop and start playing multiplayer, wi-fi in the laptop is cut down, and when I play different games. The laptop remains connected to Wi-Fi, but without Internet access. There are no such problems with the browser and sites, but when I go into multiplayer in different games, the Internet is cut down after 3-20 minutes. The problem is not in the router or provider, I tried to connect to different Wi-Fi, it's still the same problem. And I also noticed that when the Internet is slow, the Internet is not cut down.