---

1..254 | ForEach-Object { 
    $ip = "192.168.10.$_"
    if (Test-Connection -ComputerName $ip -Count 1 -Quiet -ErrorAction SilentlyContinue) { 
        Write-Host "$ip - ONLINE" -ForegroundColor Green 
    } 
}

nbtstat -A 192.168.10.24
nbtstat -A 192.168.10.99
nbtstat -A 192.168.10.224

Test-NetConnection -ComputerName 192.168.10.X -Port 5900
Test-NetConnection -ComputerName 192.168.10.X -Port 3389
Test-NetConnection -ComputerName 192.168.10.X -Port 445