Reply To: Work an Array in Batches of 5

You should get non-terminating errors for any computer that couldn’t be contacted. I tend to use -ErrorVariable to capture those:

Invoke-Command -ComputerName $listOfComputers -ScriptBlock { Do-Something } -ErrorAction SilentlyContinue -ErrorVariable myErrors

foreach ($errorRecord in $myErrors)
{
    # Handle $errorRecord
}