Unable to connect to any of the specified MySQL hosts using C#

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C#

Sir i am create connection with my sql my code is:

MySqlConnection con = new MySqlConnection("server=50.62.22.158:8808; database=hello4 uid=root; password= hello42@3;");

MySqlCommand command = con.CreateCommand();
command.CommandText = "select * from login";
con.Open();
MySqlDataReader Reader = command.ExecuteReader();
while (Reader.Read())
{
string name = "";
string pass = "";
if (!Reader.IsDBNull(0))
name = (string)Reader["userName"];
pass = (string)Reader["userPass"];
}
MessageBox.Show("success");
Reader.Close();


bt sir when i am using local server its work

but when i use another server e.g :50.62.22.158:8808
its show error :
Unable to connect to any of the specified MySQL hosts

sir please tell me whats is problem of my string