SQL Server Network Configuration node missing from Configuration Manager after install
Posting this up in case anyone else sees this and runs into the same perceived issue as I had. We have SQL Server 2016 SP1 x64 installed and SSMS 2017 installed. When I open SQL Server 2017 Configuration manager, I can't see all of the items (just as you couldn't). However, when I open SQL Server 2016 Configuration Manager I can see all of the items as expected. 

Some more details are here:
http://internationaldatascience.com/sql-server-2016-configuration-manager-missing-ssms-17-2-cannot-connect-to-wmi-provider/ 

Here's the relevant info incase that blog goes down:


  However, “SQL Server Network Configuration” was missing! The “SQL
  Server Network Configuration (32bit)” section was there, but blank as
  usual. Searching the web wasn’t turning up much, so I started poking
  around on the local machine to find the old tool. Looking on a machine
  that had 2016 but not the problem, I could see that the command in the
  Shortcut on the Start Menu for SQL Server Configuration Manager is
  actually a call to open a Microsoft Management Console (MMC):
  
  C:\Windows\SysWOW64\mmc.exe /32
  
  C:\Windows\SysWOW64\SQLServerManager13.msc I copied the “SQL Server
  2016 Configuration Manager” shortcut file in the folder
  
  “C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Microsoft SQL
  Server 2016\Configuration Tools” from the donor machine to the one I
  was having the problem with.