Get-NetAdapter will not work

The first simple example using Get-NetAdapter in Get-Help from Microsoft will not work on my machine. Any suggestions?

PS C:\Users\lit> Get-NetAdapter -Name *
Get-NetAdapter : Invalid class
At line:1 char:1
+ Get-NetAdapter -Name *
+ ~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : MetadataError: (MSFT_NetAdapter:ROOT/StandardCimv2/MSFT_NetAdapter) [Get-NetAdapter], CimException
    + FullyQualifiedErrorId : HRESULT 0x80041010,Get-NetAdapter

PS C:\Users\lit> $PSVersionTable

Name                           Value
----                           -----
PSVersion                      5.1.14393.1066
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.14393.1066
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

It appears that I have the NetAdapter module on my system.

PS C:\Users\pwatson> Get-Module -ListAvailable | Where-Object {$_.Name -Like '*NetAdapter*'}

    Directory: C:\WINDOWS\system32\WindowsPowerShell\v1.0\Modules

ModuleType Version    Name                                ExportedCommands
---------- -------    ----                                ----------------
Manifest   2.0.0.0    NetAdapter                          {Disable-NetAdapter, Disable-NetAdapterBinding, Disable-NetAdapterChecksumOffload, Disable-NetAdapt...

I finally got to see all of the ExportedCommands, but Get-NetAdapter is not among them.

Get-Module -ListAvailable | Where-Object {$_.Name -Like '*NetAdapter*'} | Select-Object -Property {$_.ExportedCommands} | Format-Custom

Based on Seth's answer, I have:

C:\Users\pwatson>winmgmt /verifyrepository
WMI repository verification failed
Error code:     0x80041003
Facility:       WMI
Description:    Access denied

I am going to accept Seth's answer and post a new question about permission settings.

Network Setup Service must be Running for "Get-NetAdapter" command to return anything in PowerShell.