WMI is a great source of information but it is not always easy to find out the names of valid WMI classes to query.
Here is a little search tool: it asks for a keyword, then searches WMI for all valid classes with this keyword. The results are shown in a grid view window, and when you choose a class and press OK, the tool queries the class for you, showing the results:
#requires -Version 3 function Search-WMI { param([Parameter(Mandatory=$true)]$Keyword) Get-WmiObject -Class "Win32_*$Keyword*" -List | Where-Object { $_.Properties.Count -gt 6 } | Where-Object { $_.Name -notlike 'Win32_Perf*' } | Sort-Object -Property Name | Select-Object -Property @{Name='Select one of these classes' Expression={$_.Name }} | Out-GridView -Title 'Choose one' -OutputMode Single | ForEach-Object { Get-WmiObject -Class $_.'Select one of these classes' | Out-GridView } } Search-WMI -Keyword network