I have PS 4 on a 2012 R2 server and the DFSN module is not showing up when I run Get-Module -listAvailable. Any thought?
Its quite likely that you don’t have the DFS Management Tools installed
http://msdn.microsoft.com/en-us/library/cc731089.aspx
Install that first and then look for the DFSN cmdlets.
cheers
You need to install File Server role: