I am facing this issue since ~2 years, so many different kernel versions were used, using openSuse and Ubuntu distributions, it makes no difference. The wireless cards are USB TP-Link TL-WN721N and TL-WN822N.
The internet connection is good all the time until I load the wireless interface with somewhat more extensive download, sometimes a file of 30MB is enough, no rule.
Then the connection is lost until I disconnect the USB card and put it back. The dmesg says nothing upon the issue occurrence. The same for
The issue is reproducible on Linux on wlan, not reproducible on wired connection.
It happens when I download via web browser from the Internet but also from local NAS via NFS (using mc). It does not matter whether the USB card is attached to mainboard USB sockets or LCD display USB hub.
It happens significantly more often when the download is using all card's badwidth than when I download at ~1MB/s rate.
It is not reproducible on Windows no matter how large files I download.
No logs I know of say anything.
What logs can I check?