I moved my KMS server (windows 2008) from Esxi 3.5 to Esxi 4.1 and also changed the IP-address because it’s a new subnet. After everything works but not my KMS server In the Application log I have the following error. Security-Licensing-SLC Error Event ID 8200 details hr=80072EFD Security-Licensing-SLC Information Event ID 1024 the hardware has changed And no clients can activate the license. Could I just use slmgr.vbs /ipk <KMS key> again or do I need to get a new KMS-key from Microsoft?