Troubleshooting Log: WiFi Toggle Missing in Settings

Issue: Option for switching on Wifi not visible in Settings

Reason: I had reinstalled kernel hoping it would fix GPU drivers.. but it seems that corrupted the wifi service. reinstalling linux-firmware package fixed it

Final Solution (The Fix)

1. Enable USB Tethering on Phone and connect to internet




2. Reinstall Linux Firmware
   
   

sudo apt install --reinstall linux-firmware

1. 
   Reboot system
   

sudo reboot

Attempts and Troubleshooting

• 
  

  Network Manager Status

  
  
  
  
  
  • `sudo systemctl status NetworkManager.service
  
  
  • 
    which nmcli → no path returned
  
  
  • 
    Result: service running but no wifi detected
    
  
  
  
  
  
  



• 
  
  

  Force Restart Services

  
  
  
  
  
  • sudo systemctl restart NetworkManager.service
  
  
  • sudo systemctl restart NetworkManager
  
  
  • 
    Result: no changes
  
  
  
  
  
  



• 
  
  

  Enabling WiFi Radio via Terminal

  
  
  
  
  
  • nmcli radio wifi on
  
  
  • nmcli device wifi list
  
  
  • 
    Result: error: no wifi device found
  
  
  
  
  
  



• 
  
  

  Hardware & Driver Verification

  
  
  
  
  
  • 
    lspci | grep -i wireless → adapter detected in hardware
  
  
  • 
    lsmod | grep iwlwifi → error: driver not loaded
  
  
  • 
    sudo modprobe iwlwifi → failed to load
  
  
  
  
  
  



• 
  
  

  Firmware & System Check

  
  
  
  
  
  • 
    ls /lib/firmware/iwlwifi-* → files present but not loading
  
  
  • sudo apt update && sudo apt upgrade
  
  
  • sudo apt install network-manager
  
  
  • 
    Result: no changes but now the command which nmcli works