Hello, @Maal656
Please try to do the following step and reply back the result.
Disable K self-defense.
Run the following powershell command with admin prividge.
cmd /c "sc delete klim6"
after do that, Does it reply back any error messages? If no, Please run the following command to check whether klim6 ndis driver has been deleted or not.
cmd /c "sc query type= driver group= NDIS"
After do all the steps, Please reboot the PC to check this issue has gone or not?
Regards.