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By default, when sharing an Internet connection with other network user's, their IP will belong to the 192.168.137.1/24 subnet.

To change this default value, one can change the registry: in Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters

I changed the ScopeAddress and ScopeAddressBackup key to 192.168.1.1, and added a new entry StandaloneDHCPAddress, which I also set to 192.168.1.1. After restarting my PC, and checking in cmd, Internet access is still being shared on the default subnet.

Is there any step that I'm missing to enable this change?

I will appreciate any help you can provide.

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  • Try to also set ScopeAddressBackup.
    – harrymc
    Jul 10, 2018 at 15:41
  • @harrymc, thank you very much. I forgot to mention I also did that with no results.
    – David
    Jul 11, 2018 at 12:31

1 Answer 1

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I know I am a little too late, but maybe my answer can help others in the future. I was having the same problem on Windows 11 and the only way to change the subnet was to add a new key as fallows:

On Regidit Navigate to the key HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\SharedAccess\Parameters.

Right-click on the Parameters key and select New > DWORD (32-bit) Value.

Name the new value "ScopeMask" and double-click on it to edit its value.

Set the value to 0x00FFFF00, which is equivalent to 255.0.0.0 in decimal format.

Close the Registry Editor and restart the computer.

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