gistfile1.txt

<#$userName = $args[0]
$password = $args[1]
$hostName = $args[2]
#>

$useName = admin
$password = "testing123"
$hostName = windows10

Add-Type -AssemblyName System.DirectoryServices.AccountManagement
$principalContext = New-Object System.DirectoryServices.AccountManagement.PrincipalContext("Machine","$hostname")
Function Validate-Credentials{
        $validate=$principalContext.ValidateCredentials($userName, $passWord)
        if($validate)
            {
            return $true
            }
        elseif($validate -eq $false)
            {
                throw "Bad username or Password"
            }
        else{
                throw $_.Exception.InnerException
            }
        }
try
    {
        Validate-Credentials
    }
catch 
    {
        if($Error[0].Exception.InnerException -match "Access is denied.")
            {
                $iP=Test-Connection $hostname | select IPV4Address
                $iP=$IP[0].IPV4Address.IPAddressToString
                $hostname= $iP
                Validate-Credentials
            }
        else
            {
                throw $_.Exception.InnerException
            }
    }