The Internet is disconnected several times during the day

Question: Good evening, 2 computers and a laptop (mine) are connected to the router, the Internet works for all of them, but the laptop disconnects several times a day, and there is no yellow triangle, I click on the icon in the lower right, disconnect and turn on again, it works when 20 minutes, when 1 hour, when as he wants. And so all day long. Router new bought, experts (internet networks) do not see the cause.

Answer:

And maybe the Internet is disconnected after coming out of sleep mode?

Also, it’s not very clear how exactly it shuts down. Just the laptop disconnects from the Wi-Fi network, and you have to manually start the connection every time?

The problem is hardly in the router, especially since other devices work fine. Something in the laptop. Maybe you need to update the Wi-Fi adapter driver.