Server 2012 R2 Prerequisites Fail When Promoting to Domain Controller

Brand new Server 2012 R2 fully patched (using HP intelligent provisioning on Microserver Gen8), trying to create a new forest and promote to DC but fails no matter how complex I make the Domain Administrator Password.

“The new domain cannot be created because the local Administrator account password does not meet requirements”

Solution is to run the following from elevated command prompt

Net user Administrator /passwordreq:yes