Failed to connect to <span style="border-bottom: 1px dotted black;">MySQL</span>: Connection refused

<?php

 

$con=mysqli_connect("cs.lgn.lt","root","***","***");

 

 

if (mysqli_connect_errno($con))

  {

  echo "Failed to connect to <span style="border-bottom: 1px dotted black;">MySQL</span>: " . mysqli_connect_error();

  }

?>