WiFi not showing but connecting to internet through USB tethering

Network icon in taskbar shows a red cross and says “Disconnected”. It also does not detect any WiFi network but connects to internet through USB tethering.

Here are my system properties:

  Host: mws-notebook Kernel: 5.6.15-1-MANJARO x86_64 bits: 64 
  Desktop: KDE Plasma 5.18.5 Distro: Manjaro Linux 
  Type: Laptop System: Hewlett-Packard product: HP EliteBook 2560p 
  v: A0001C02 serial: <root required> 
  Mobo: Hewlett-Packard model: 162B v: KBC Version 04.21 
  serial: <root required> BIOS: Hewlett-Packard v: 68SSU Ver. F.22 
  date: 12/22/2011 
  ID-1: BAT0 charge: 38.0 Wh condition: 40.8/40.8 Wh (100%) 
  Topology: Dual Core model: Intel Core i5-2540M bits: 64 type: MT MCP 
  L2 cache: 3072 KiB 
  Speed: 819 MHz min/max: 800/3300 MHz Core speeds (MHz): 1: 798 2: 811 
  3: 840 4: 806 
  Device-1: Intel 2nd Generation Core Processor Family Integrated Graphics driver: i915 v: kernel 
  Display: x11 server: X.Org 1.20.8 driver: intel unloaded: modesetting 
  resolution: 1366x768~60Hz 
  OpenGL: renderer: Mesa DRI Intel HD Graphics 3000 (SNB GT2) 
  v: 3.3 Mesa 20.0.7 
  Device-1: Intel 6 Series/C200 Series Family High Definition Audio 
  driver: snd_hda_intel 
  Sound Server: ALSA v: k5.6.15-1-MANJARO 
  Device-1: Intel 82579LM Gigabit Network driver: e1000e 
  IF: enp0s25 state: down mac: 28:92:4a:d3:d2:c8 
  Device-2: Intel Centrino Advanced-N 6205 [Taylor Peak] driver: iwlwifi 
  IF: wlo1 state: down mac: d6:3b:74:1d:1c:60 
  Local Storage: total: 232.89 GiB used: 25.13 GiB (10.8%) 
  ID-1: /dev/sda vendor: Seagate model: ST250LT007-9ZV14C 
  size: 232.89 GiB 
  ID-1: / size: 92.87 GiB used: 25.08 GiB (27.0%) fs: ext4 dev: /dev/sda6 
  ID-2: /boot size: 922.7 MiB used: 57.6 MiB (6.2%) fs: ext4 
  dev: /dev/sda1 
  System Temperatures: cpu: 42.0 C mobo: N/A 
  Fan Speeds (RPM): N/A 
  Processes: 178 Uptime: 36m Memory: 3.74 GiB used: 591.2 MiB (15.4%) 
  Shell: bash inxi: 3.0.37 

It worked fine some days ago. Wifi also works on windows. I don’t know what to do as I am a beginner and also I have online classes.

Is either hardware locked or software locked. That is what down means. From terminal:
rfkill list
will show you that.

So, either you have a keyboard combination to turn wifi off, or another hardware switch, or your Windows still has the Fast Startup and Hybrid Sleep enabled, making the wifi to enter in a zombie state, not being recognized properly by linux system.

Run this commands one by one and see if there are changes:

sudo ifconfig wlo1 down
sudo ifconfig wlo1 up
sudo rfkill unblock all
sudo rfkill unblock wifi

Running rfkill list gives:

0: hp-wifi: Wireless LAN
        Soft blocked: no
        Hard blocked: yes
1: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no

It says that wifi is hard blocked, i think.

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