Internet on Ubuntu disappears after a couple of minutes of work. How can I fix it?

Question

linux

Asus k53s
Ubuntu 14.04 LTS

[email protected]:~$ lspci | grep Network
03:00.0 Network controller: Intel Corporation Centrino Wireless-N 100

Problem:
After connecting to wi-fi, the Internet works adequately for about 5 minutes, then the speed starts to drop sharply (the page loads for 2 minutes), as a result, the Internet completely disappears (while the Wi-Fi fan claims the opposite). I reconnect to wi-fi, the Internet works again for 5 minutes and then according to the old scenario. However, sometimes it continues to work, but the speed is incredibly low .. The
router was checked - the Internet works fine on a laptop and PC with Windows, and there are no problems with wi-fi on mobile devices.
System diagnostics.
Friends, what could be the reason and how can it be fixed?

Answer 1

And for a long time the device was cleaned from dust? Looks like controller overheating

Answer 2

https://eyakubovskiy.ru/2020/05/16/linux-ubuntu-20... perhaps also because of the function on Windows that blocks the adapter)

Answer 3

try to do these steps ubuntuforums.org/showthread.php?t=370108

Answer 4

Which option helped in the end?