Dell XPS 13 9310 Killer AX500 Wi-Fi unavailable – permanent Windows 11 fix

My Dell XPS 13 9310 with the Killer Wi-Fi 6 AX500-DBS adapter showed Wi-Fi as unavailable in Windows 11. Device Manager reported no error, and the same Wi-Fi hardware worked correctly in Ubuntu.

netsh wlan show interfaces reported:

Hardware Disabled
Software Disabled

The AX500 registry key contained:

EnableHardwareRFKill = 1
SoftwareRadioOff = 1

The adapter registry folder can vary, so locate it under:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4d36e972-e325-11ce-bfc1-08002be10318}

Find the subfolder whose DriverDesc is:

Killer Wi-Fi 6 AX500-DBS Wireless Network Adapter

Set both values to 0.

In my case, SoftwareRadioOff changed back to 1 after reboot. The permanent fix was to disable the Killer Network Service:

Stop-Service -Name "Killer Network Service" -ForceSet-Service -Name "Killer Network Service" -StartupType Disabled

Then set the registry values again and reload the adapter:

Set-ItemProperty $k EnableHardwareRFKill 0Set-ItemProperty $k SoftwareRadioOff 0Disable-NetAdapter WLAN -Confirm:$falseStart-Sleep 3Enable-NetAdapter WLAN -Confirm:$false

After reboot, Wi-Fi remained enabled and connected automatically.

Dell AX500 driver used:

• Dell 7882H – Wi-Fi driver 1.0.0.1769
• Dell HRRHT – Component and Extension package 3.1121.1165.0

This solved the issue after many driver reinstalls, network resets and Windows repair attempts had failed.