TL-WN821N V5 does not work

[Leonardo Müller]

I bought a TP-Link TL-WN821N V5 wireless adapter and it is not working on Xubuntu 20.04. On dmesg, it is detected correctly. However, the authentication times out very quickly.

The module from https://github.com/clnhub/rtl8192eu-linux.git works, but this is not ideal, because it requires rebuilding the module for every kernel version and, either disable Secure Boot or sign every module for every kernel update.

The attached file has the full dmesg log, including trying rtl8xxxu with debug=0xffff log. I noticed the log shows this device is untested.

lshw output for this device:

  *-network:1
       description: Wireless interface
       physical id: 4
       bus info: usb@1:1
       logical name: wlxd03745cb0794
       serial: d0:37:45:cb:07:94
       capabilities: ethernet physical wireless
       configuration: broadcast=yes driver=rtl8xxxu driverversion=5.8.0-50-generic firmware=N/A link=no multicast=yes wireless=IEEE 802.11

lsusb:

Bus 001 Device 005: ID 2357:0107 TP-Link TL-WN821N Version 5 RTL8192EU

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.8.0-50-generic 5.8.0-50.56~20.04.1
ProcVersionSignature: Ubuntu 5.8.0-50.56~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-50-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: XFCE
Date: Tue Apr 20 19:42:11 2021
InstallationDate: Installed on 2017-06-13 (1406 days ago)
InstallationMedia: Xubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
SourcePackage: linux-signed-hwe-5.8
UpgradeStatus: Upgraded to focal on 2019-12-22 (485 days ago)