Hello everyone! This is my first post on the Manjaro forum.
I’m a new user
I used XFCE for around 2 weeks now and I wanted to try the KDE Plasma desktop version of Manjaro.
I wasn’t able to connect to wifi. The system sees the USB stick I’m using to connect to wifi, it listes the avaiable wifis but when I try to connect to one it fails.
I’m using the TP-LINK WN823N wifi adapter and I’m using the RTL8xxxu driver.
Click here to see system information
inxi -Nazy
Network:
Device-1: Intel I211 Gigabit Network vendor: Gigabyte driver: igb v: kernel
port: f000 bus ID: 03:00.0 chip ID: 8086:1539
Device-2: TP-Link TL-WN823N v2/v3 [Realtek RTL8192EU] type: USB
driver: rtl8xxxu bus ID: 1-9:3 chip ID: 2357:0109 serial: <filter>
lsusb
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 005: ID 0e6a:02c0 Megawin Technology Co., Ltd Defender Gaming Keyboard
Bus 003 Device 004: ID 0c76:160c JMTek, LLC. USB Speaker
Bus 003 Device 003: ID 18ec:3399 Arkmicro Technologies Inc. USB2.0 PC CAMERA
Bus 003 Device 002: ID 1bcf:0005 Sunplus Innovation Technology Inc. Optical Mouse
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 2357:0109 TP-Link TL-WN823N v2/v3 [Realtek RTL8192EU]
Bus 001 Device 004: ID 04e8:6034 Samsung Electronics Co., Ltd G2 Portable hard drive
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
inxi -F
System:
Host: pcLeo Kernel: 5.9.16-1-MANJARO x86_64 bits: 64 Desktop: KDE Plasma 5.20.4
Distro: Manjaro Linux
Machine:
Type: Desktop System: Gigabyte product: B450 AORUS PRO v: N/A
serial: <superuser required>
Mobo: Gigabyte model: B450 AORUS PRO-CF v: x.x serial: <superuser required>
BIOS: American Megatrends v: F60e date: 12/09/2020
CPU:
Info: 6-Core model: AMD Ryzen 5 3600X bits: 64 type: MT MCP L2 cache: 3 MiB
Speed: 3591 MHz min/max: 2200/3800 MHz Core speeds (MHz): 1: 3591 2: 2050 3: 2191
4: 2192 5: 2053 6: 2196 7: 2194 8: 2196 9: 3588 10: 2048 11: 2048 12: 2195
Graphics:
Device-1: AMD RV730 XT [Radeon HD 4670] driver: radeon v: kernel
Display: x11 server: X.Org 1.20.10 driver: ati,radeon unloaded: modesetting
resolution: 1920x1080~60Hz
OpenGL: renderer: AMD RV730 (DRM 2.50.0 / 5.9.16-1-MANJARO LLVM 11.0.0)
v: 3.3 Mesa 20.3.1
Audio:
Device-1: AMD RV710/730 HDMI Audio [Radeon HD 4000 series] driver: snd_hda_intel
Device-2: AMD Starship/Matisse HD Audio driver: snd_hda_intel
Device-3: Arkmicro USB2.0 PC CAMERA type: USB driver: snd-usb-audio,uvcvideo
Device-4: JMTek LLC. USB Speaker type: USB driver: hid-generic,snd-usb-audio,usbhid
Sound Server: ALSA v: k5.9.16-1-MANJARO
Network:
Device-1: Intel I211 Gigabit Network driver: igb
IF: eno1 state: down mac: b4:2e:99:e8:ab:91
Device-2: TP-Link TL-WN823N v2/v3 [Realtek RTL8192EU] type: USB driver: rtl8xxxu
IF: wlp1s0f0u9 state: down mac: 5e:49:ad:6b:e3:2b
Drives:
Local Storage: total: 1.04 TiB used: 7.87 GiB (0.7%)
ID-1: /dev/sda vendor: Crucial model: CT500MX500SSD1 size: 465.76 GiB
ID-2: /dev/sdb type: USB vendor: Samsung model: G2 Portable size: 596.17 GiB
Partition:
ID-1: / size: 115.13 GiB used: 7.87 GiB (6.8%) fs: ext4 dev: /dev/sda5
Swap:
Alert: No Swap data was found.
Sensors:
System Temperatures: cpu: 44.5 C mobo: N/A gpu: radeon temp: 37.0 C
Fan Speeds (RPM): N/A
Info:
Processes: 298 Uptime: 4m Memory: 15.64 GiB used: 979.9 MiB (6.1%) Shell: Bash
inxi: 3.2.01
Thanks in advance 
PS: Sorry for the bad english