thanks for the reply, unfortunately does not work for me. The only commands that work are the 2 powershell commands:
Set-NetIPv6Protocol -RandomizeIdentifiers Disabled
Set-NetIPv6Protocol -UseTemporaryAddresses Disabled
but they only work for the current session. After every reboot, privacy-extensions are enabled again and i get random temporary ipv6 addresses.
This is driving me bananas .....
Also tried enabling the true "Administrator" account in windows11 and entering all the commands there, no luck ...
but thanks for the help anyway.