Unable to KMS activate Office running on Windows 8.1 or Windows Server 2012 R2

ISSUE: When attempting to activate Microsoft Office running on Windows 8.1 or Windows Server 2012 R2 clients using KMS activation, the activation fails with an error code 0xC004F074. Running ospp.vbs /dstatus shows the following output: LICENSE NAME: Office 15, OfficeProPlusVL_KMS_Client editionLICENSE DESCRIPTION: Office 15,VOLUME_KMSCLIENT channelLICENSE STATUS: —OOB_GRACE—ERROR CODE: 0x4004F00CERROR DESCRIPTION: The Software Licensing Service reported that…

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Office 2010 Activation errors - 0xC004F074 "...No Key Management Service (KMS) could be contacted" and 0xc004f050 "The Software Licensing service reported that the product key is invalid"

When launching Office 2010 applications, a message appears indicating that Office is not activated. Attempts to activate Office may result in the following error:   “Error 0xC004F074: The Software Licensing Service reported that the computer could not be activated. No Key Management Service (KMS) could be contacted. Please see the Application Event Log for additional…