Word 2013, KMS not activating, looking for clues

view story

http://serverfault.com – I have ONE office 2013 installation among a little more than half a dozen that is not getting activated by our KMS. Funny enough it is on my machine which got reinstalled some time ago - "last" of all, after we redid the KMS (moving it to Server 2012)- I started getting a nagging activation wizard yesterday,, claiming I have 4 days left to activate and I should ensure I am connected to the coporate network. Well, I am. It claims error code 0x4004f00c. Which google tells me does not return a reference. The KMS works - all other machiens have no problem, and my WIndowss itself has also been (HowTos)