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I have two operating systems: Windows 10 and Ubuntu 20.04 on the same PC. When I boot windows 10 - everything works fine. When I load ubuntu 20.04 - it fails to turn on the WiFi adapter. This problem appeared recently, it was working fine before. Very strange is the fact that when I execute the lsusb command - it lists correctly the usb wireless adapter. It looks like the adapter is connected and recognized by ubuntu, however it is somehow is turned off internally. When I load the Windows 10 - the wifi adapter start lighting up and blinking, but when loading ubuntu - it is always dark. It was working fine few month ago.

$ lsusb output:

Bus 001 Device 002 ID 2357:0120 TP-Link 802.11ac WLAN Adapter

I'm not able to connect to the internet from that PC while having the issue. I can't do sudo apt-get update or sudo apt-get upgrade or any other command that requires an active internet connection because the internet is not available ((((

Semen Shekhovtsov
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2 Answers2

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That adapter is not supported : https://linux-hardware.org/index.php?id=usb:2357-0120

Get a small USB one that is, anything marketed as for a Raspberry Pi, for instance will work.

Tom Chiverton
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The solution is to use the aircrack drivers. See https://github.com/aircrack-ng/rtl8812au

sudo apt install git dkms
git clone https://github.com/aircrack-ng/rtl8812au.git
cd rtl8812au
sudo make dkms_install
Semen Shekhovtsov
  • 113