Manjaro Linux intermittently loses internet, what should I do?

Question

linux

Hello, please help! Reviewed everything everywhere. The Internet periodically disappears, about once every 10 - 20 minutes for 1 minute and then it connects back. It seems ascetic, but not very convenient.
There are two more laptops at home, with Windows, everything is okay there.
Previously, this laptop also had Windows and everything was okay too.

Answer 1

This is a hardware problem 99.9%
To make sure that the problem is not in the system - boot from any USB flash drive (in live mode)
and check. Take the laptop to repair :(

Answer 2

connect a usb-wifi adapter and test the network through it