Installing MR-DIY usb wifi adapter for linux

Plug USB and run command

lsusb

If one of the line is showing this then you ok

-Realtek Semiconductor Corp. 802.11ac NIC

go to this link for installation

https://github.com/morrownr/8821cu-20210118

sudo apt update && sudo apt upgrade

sudo reboot

sudo apt install -y build-essential dkms git

sudo apt install build-essential git dkms bc (The different between on github step,

sometimes error cannot install driver after run install.sh)

mkdir -p ~/src

cd ~/src

git clone https://github.com/morrownr/8821cu-20210118.git

cd ~/src/8821cu-20210118

sudo ./install-driver.sh

sudo reboot

If indicator light on USB is blinking/or on meaning the driver is detected, run

nmcli dev wifi

then to connect run;

sudo nmcli dev wifi connect "network-ssid" password "network-password"

to set usb auto connect

nmcli device

Check your usb device, example in this case wlx9091

nmcli device set wlx9091 autoconnect yes

Daniel Amani Blog