Logged in to confirm that what MonkeyDLuffy wrote still works and my adapter is working great(alot better than the built in Broadcom based one thats for sure).

Thank you for relaying this Monkey :)

@MonkeyDLuffy 

Hi! Would you know if it works on tails?

  @MonkeyDLuffy 

Thank you, it works flawless on my ubuntu 20.04.

But after restart the Wifi is not available anymore.

How to make it work after restart? Making it avaiable at startup...

MonkeyDLuffy wrote

@BBiswas Hey!

 

I had the same problem, check out Jags solution on Ask Ubuntu under Proper Way of Installing Wifi Drivers.

For convenience, I'll repost it here, because I can't seem to attach the link, but I take no credit for the following solution or the github repo. Make sure the adapter is unplugged, and tether to a phone or connect to ethernet. In terminal, do:

 

git clone https://github.com/cilynx/rtl88x2bu.git
cd rtl88x2bu
VER=$(sed -n 's/\PACKAGE_VERSION="\(.*\)"/\1/p' dkms.conf)
sudo rsync -rvhP ./ /usr/src/rtl88x2bu-${VER}
sudo dkms add -m rtl88x2bu -v ${VER}
sudo dkms build -m rtl88x2bu -v ${VER}
sudo dkms install -m rtl88x2bu -v ${VER}
sudo modprobe 88x2bu

 

Hope this helped and cheers,

Monkey D. Luffy

 

 

Thank you

  @BBiswas HI

HOW INSTALL ARCHER T3U ON  LINUX MINT 20.3

Hey @MonkeyDLuffy,

Thank you so very much for sharing the proper solution, this solution worked for my Ubuntu 20.04 where I was trying to get TP-Link AC1300(Archer T3U Plus) to work, for some reason originally my system only supported TP-LINK N300-mini USB but now both my Wifi dongles work
 

  @BBiswas Thanks! It worked for me!