$Machines = Get-ADComputer -Filter * -SearchBase 'OU=Laptops,OU=Win10Modern,OU=LN,OU=Workstations,DC=cooley,DC=com' | Select-Object Name

$result = foreach ($Machine in $Machines) { if (Test-Connection -ComputerName $Machine -Count 1 -Quiet) { Invoke-Command -ComputerName $Machine -ScriptBlock { Get-NetAdapterAdvancedProperty -Name "Wi-Fi*" -DisplayName "Roaming Aggressiveness" | Select-Object Name,DisplayName, DisplayValue,PSComputerName } } else { Write-Warning "Computer '$Machine' does not respond" } }

output on the screen

$result

CodePudding user response：

StackOverflow isn't letting me edit your original question to format the text so it's easier to read.

If your code is correct, you cannot put the Results of a foreach into a variable like $result.

I would suggest you output the outcome of each into a variable, then publish those variables -OR- write them to a file you can read.

    $Machines = Get-ADComputer -Filter * -SearchBase 'OU=Laptops,OU=Win10Modern,OU=LN,OU=Workstations,DC=cooley,DC=com' | Select-Object Name

    # generate collection to store data for each outcome
    $ComputerNotRespond = @()
    $ComputerResponse = @()

    foreach ($Machine in $Machines)
    {
        if (Test-Connection -ComputerName $Machine -Count 1 -Quiet)
        {
            Invoke-Command -ComputerName $Machine -ScriptBlock {
                $Data = Get-NetAdapterAdvancedProperty -Name "Wi-Fi*" -DisplayName "Roaming Aggressiveness" | Select-Object Name,DisplayName,DisplayValue,PSComputerName
            }
            $ComputerResponse  = $Data
        }
        else
        {
            $ComputerNotRespond  = "Computer ${Machine} does not respond"
        }
    }

Now you can pubish the outcome of the $ComputerNotRespond to a text file:

    $ComputerNotRespond | Out-File C:\tmp\computer_not_respond.txt -Append

And you can get the results into CSV to read later:

    $ComputerResponse | Export-Csv -Path C:\tmp\computer_response.csv -NoTypeInformation

CodePudding user response：

As commented, you are collecting objects in variable $Machines, where you are expecting just strings.

Try

$Machines = Get-ADComputer -Filter * -SearchBase 'OU=Laptops,OU=Win10Modern,OU=LN,OU=Workstations,DC=cooley,DC=com' | Select-Object -ExpandProperty Name
# or shorter:
# $Machines = (Get-ADComputer -Filter * -SearchBase 'OU=Laptops,OU=Win10Modern,OU=LN,OU=Workstations,DC=cooley,DC=com').Name
$result = foreach ($Machine in $Machines) { 
    if (Test-Connection -ComputerName $Machine -Count 1 -Quiet) { 
        Invoke-Command -ComputerName $Machine -ScriptBlock { 
            Get-NetAdapterAdvancedProperty -Name "Wi-Fi*" -DisplayName "Roaming Aggressiveness" | 
            Select-Object Name, DisplayName, DisplayValue, PSComputerName 
        }
    } 
    else { 
        Write-Warning "Computer '$Machine' does not respond" 
    }
} 

# output on screen
$result | Format-Table -AutoSize

# output to CSV
$result | Export-Csv -Path 'X:\Somewhere\WiFiAgressiveness.csv' -NoTypeInformation