Not to be Downer Dave on a Friday but, I think we should all take this time to reflect on KMS and how big of a pain in the arse it is...... Ok good.. Now...
Using Server 2012 Datacenter as my KMS server, trying to activate Windows 7 VMs. I met the threshold (clearly), and have a good DNS record published. I am about out of ideas.
Is there something I am missing?