Lokale Admingruppe Remote per Powershell auslesen

function get-localadmins{
  [cmdletbinding()]
  Param(
  [string]$computerName
  )
  

  try{
  $group = get-wmiobject win32_group -ComputerName $computerName -Filter "LocalAccount=True AND SID='S-1-5-32-544'"  
  }
  catch{
  if ($group -match 'Der RPC-Server ist nicht verfügbar'){write-host "RPC nicht aktiv"}  
  }

  $query = "GroupComponent = `"Win32_Group.Domain='$($group.domain)'`,Name='$($group.name)'`""  
  $list = Get-WmiObject win32_groupuser -ComputerName $computerName -ErrorAction SilentlyContinue -Filter $query 
  $list | %{$_.PartComponent} | % {$_.substring($_.lastindexof("Domain=") + 7).replace("`",Name=`"","\")} |  select-object @{Name="USERNAME";Expression={$_}},@{Name="PCNAME";Expression={$computerName}}  
}

Function Test-ConnectionQuietFast {
 
    [CmdletBinding()]
    param(
    [String]$ComputerName,
    [int]$Count = 1,
    [int]$Delay = 250
        )
 
    for($I = 1; $I -lt $Count + 1 ; $i++)
    {
        #Write-Verbose "Ping Computer: $ComputerName, $I try with delay $Delay milliseconds" 
 
        # Test the connection quiet to the computer with one ping
        If (Test-Connection -ComputerName $ComputerName -Quiet -Count 1)
        {
            # Computer can be contacted, return $True
            #Write-Verbose "Computer: $ComputerName is alive! With $I ping tries and a delay of $Delay milliseconds" 
            return $True
        }
 
        # delay between each pings
        Start-Sleep -Milliseconds $Delay
    }
 
    # Computer cannot be contacted, return $False
    Write-Verbose "Computer: $ComputerName cannot be contacted! With $Count ping tries and a delay of $Delay milliseconds"  
    $False
}


$server = @(Get-Content C:\User\User.txt)


foreach($servers in $server)
{
$connect = Test-ConnectionQuietFast -ComputerName $servers -Count 2 -Delay 250 –Verbose -ErrorAction Stop

if ($connect -eq $true){
$servers=$servers | % { get-localadmins $_} -ErrorAction Stop 
$servers=$servers | Where-Object {$_ -notlike "*svcSCCM*"}   
$servers=$servers | Where-Object {$_ -notlike "*rol_*"}  
$servers=$servers | Where-Object {$_ -notlike "*Domain*"}  
$servers=$servers | Where-Object {$_ -notlike "*Support89*"}  
$servers=$servers | Where-Object {$_ -notlike "*Lokale*"}  
$servers
}
else{
Write-Host "Rechner nicht erreichbar "  
}
}


get-wmiobject : Der RPC-Server ist nicht verfügbar. (Ausnahme von HRESULT: 0x800706BA)
In C:\Users\Fiedlerflo\Documents\Adminrechte-abfragen.ps1:9 Zeichen:12
+   $group = get-wmiobject win32_group -ComputerName $computerName -Fil ...
+            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [Get-WmiObject], COMException
    + FullyQualifiedErrorId : GetWMICOMException,Microsoft.PowerShell.Commands.GetWmiObjectCommand