If you are are taking "Learn Ethical Hacking From Scratch | Udemy" by Zaid Sabih and using Kali 2022 x64 Customized by zSecurity 1.0.7 and TP-Link TL-WN722N v2/v3 [Realtek RTL8188EUS], you might find this helpful. In the begining, I am able to enter monitor mode. However after a few days, I found out it doesn't allow to enter monitor mode. I think TP-Link TL-WN722N v2/v3 have automatically updated its driver. Then, I find a video from David Bombal (https://www.youtube.com/watch?v=tYnjMiTTdms) but still can't perfectly solve the issue. However, I find below steps work fine for me.

1. sudo apt update
2. sudo apt upgrade
3. sudo apt-get dist-upgrade
4. reboot
5. sudo apt-get install linux-headers-$(uname -r)
6. sudo apt install bc
7. sudo apt-get install build-essential
8. sudo apt-get install libelf-dev
9. sudo apt install dkms
10. sudo rmmod r8188eu.ko
11. git https://github.com/drygdryg/rtl8188eus (This works for me 😂)
12. cd rtl8188eus
13. sudo -i
14. echo 'blacklist r8188eu'|sudo tee -a '/etc/modprobe.d/realtek.conf'
15. reboot
16. cd rtl8188eus
17. sudo make && make install
18. reboot

Like https://github.com/cccooo/rtl8812au-centos-7.6, forked from aircrack-ng/rtl8188eus and modified for CentOS 7.9 as CentOS Kernel 3.10 contains many code from 4.x

rtl8188eus v5.3.9

Realtek rtl8188eus & rtl8188eu & rtl8188etv WiFi drivers

Supports

• Android 7
• MESH Support
• Monitor mode
• Frame injection
• Up to kernel v5.8+ ... And a bunch of various wifi chipsets

Howto build/install

1. You will need to blacklist another driver in order to use this one.
2. echo 'blacklist r8188eu'|sudo tee -a '/etc/modprobe.d/realtek.conf'
3. Reboot
4. cd rtl8188eus
5. make && sudo make install
6. Reboot in order to blacklist and load the new driver/module.

MONITOR MODE howto

Use these steps to enter monitor mode.

$ sudo airmon-ng check kill
$ sudo ip link set <interface> down
$ sudo iw dev <interface> set type monitor

Frame injection test may be performed with (after kernel v5.2 scanning is slow, run a scan or simply an airodump-ng first!)

$ aireplay -9 <interface>

NetworkManager configuration

Add these lines below to "NetworkManager.conf" and ADD YOUR ADAPTER MAC below [keyfile] This will make the Network-Manager ignore the device, and therefore don't cause problems.

[device]
wifi.scan-rand-mac-address=no

[ifupdown]
managed=false

[connection]
wifi.powersave=0

[main]
plugins=keyfile

[keyfile]
unmanaged-devices=mac:A7:A7:A7:A7:A7

Credits

Realtek - https://www.realtek.com
Alfa Networks - https://www.alfa.com.tw
aircrack-ng. - https://www.aircrack-ng.org

And all those who may be using or contributing to it of anykind. Thanks!