Need some help with KMS, status 9

Hi All,

Hope anyone can help me.

Running Windows Server 2008 R2 SP1 x64 and NetBackUp 7.5.0.1 with a Dell ML6000 (IBM Ultrium TD3 SCSI tape drives)

I want to do server side encryption, so I configured KMS (correctly?) and ticked the box "Encryption" in the policy.

But why does this job always fails with "status 9: a necessary extension package is not installed or not configured properly"?

Regards,