Just provisioned a bunch of nice shiny new VMs with Windows Server 2016 Core, joined to the domain, proxy set and Windows Updates applied. All ready for DSC except that I can't connect remotely! The following red text annoys me:
So I try a few things...
1) Try remoting from a VM on the same host - nada
2) Try removing the proxy - nada (just got a different exception)
3) Reboots - nada
So then I decided to talk to a network\infrastructure dude to get help (caus I is a dev).
A huff and puff and some jiggery pokery later and it turns out DNS was holding static records for the previous versions of the machines. You see, the VMs were shiny and new but their names weren't. Once the static DNS records were deleted I could remote! Adds weight to the argument that VMs should be named generically.
Shout out to Si for helping me with this :-)