Why does the connection to sites periodically disappear on a laptop?

Question

Samsung

Notebook Samsung np350e5c-s0aru
Windows 8
updated the driver for the atheros wifi board from the site (but with the same problems installed via samsung update after installing Windows).
The problem is that after 2-3 hours of using the Internet, the connection to some sites (VKontakte, YouTube in particular) disappears. The problem is treated by reconnecting to a wifi access point.
The same picture can be observed by turning on the torrent. It shakes somewhere for 15-20 minutes and then calms down. It is treated by the same reconnection.
A phone is connected to the same access point, another laptop, both via wifi, and a stationary computer via a LAN cable. Never seen such a problem with them.
There is no additional network software on the laptop, only native windows defender and native firewall.
The network wifi card and driver are as follows: Qualcomm Atheros AR9485WB-EG Wireless Network Adapter
The problem is that it is difficult to find fresh firewood for it. Perhaps they would have solved the problem, but I did not succeed.
It is also possible that there is a problem somewhere in Windows. It seems that somewhere there is some kind of buffer that fills up and stops working, and when you reconnect to a wifi point, it is reset to zero.
Perhaps someone had the same problems? what do you think, where is the catch?

Answer 1

This problem is not only with you, not only on Samsung and not only in Russia, the problem is the support of Atheros AR9485WB-EG Wireless Network Adapter, try experimenting with rolling back drivers to this piece of hardware, remove those that are in the system, and automatically search through the device manager , Samsung offers your adapter only under XP, it is possible that they can solve the problem
www.samsung.com/ru/support/model/NP350E5C-S0ARU-do...