Hello,
Our KMS server had been running without any issue for months on Windows Server 2008 R2, until recently when I tried to activate 25+ Windows 7 Machines and 25+ Office 2013 machines, and it just wouldn’t activate, giving the error “Error: 0xC004F074 The Software Licensing Service reported that the computer could not be activated. The Key Management Service (KMS) is unavailable”. We are currently able to activate Office 2010 without issues.
I have updated VAMT to version 3.1, reinstalled VAMT on a fresh installation of Server 2008 R2 and also on Server 2012 R2, however this also gave the same error messages and I am still unable to activate Windows 7 Professional or Office 2013 using KMS.
I have used the Volume Licencing Keys from the Microsoft Website (https://www.microsoft.com/Licensing/servicecenter/default.aspx) and am fairly confident that our keys are correct.
I would be grateful for any assistance.
Thank you.