Ratchet onopen client not fire - php

Question

I am trying to implement Ratchet Socket Hello word on my local machine every things works perfectly but on vps centos server when i run server service with
ssh Command : php chat-server.php
it start Listening on port correctly(i can see on linux that port is Listening ) , but when i open "clint.html" page the method onopen never fire but server says
new client connected !
and after 2 minute it says
client disconnected
if i send message to client it will take 2 minutes then client will receive it, but it will disconnect again
it seems to me that there is not stable connection between server and client. every time when i check websocket.readyState its not equal to 1
i disabled firewall and any security on vps server but still have this problem.
i have to mention that normal php socket functions works without problem because i could test it and every thing works
but about ratchet it seems it hang on onopen method.
port 9091 is open
firewall is disabled
abrandao.com/2013/06/websockets-html5-php/ works whiteout problem and can send and receive message from clients
BUT Ratchet has problem onconnect
chat-server.php :
use Ratchet\Server\IoServer;
use Ratchet\Http\HttpServer;
use Ratchet\WebSocket\WsServer;
use MyApp\Chat;
require dirname(__DIR__) . '/vendor/autoload.php';
$server = IoServer::factory(
new HttpServer(
new WsServer(
new Chat()
)
),
9091
);
echo date("Y-m-d H:i:s")." chat-server Started on port 9091 \n";
$server->run();
Chat.php class :
namespace MyApp;
use Ratchet\MessageComponentInterface;
use Ratchet\ConnectionInterface;
class Chat implements MessageComponentInterface {
protected $clients;
public function __construct() {
$this->clients = new \SplObjectStorage;
}
public function onOpen(ConnectionInterface $conn) {
$this->clients->attach($conn);
echo date("Y-m-d H:i:s")." New connection! ({$conn->resourceId})\n";
$conn->send("Hello {$conn->resourceId} from server at : ".date("Y-m-d H:i:s"));
echo date("Y-m-d H:i:s")." Hello Sent to ({$conn->resourceId})\n";
}
public function onMessage(ConnectionInterface $from, $msg) {
$numRecv = count($this->clients) - 1;
echo sprintf(date("Y-m-d H:i:s").'Connection %d sending message "%s" to %d other connection%s' . "\n"
, $from->resourceId, $msg, $numRecv, $numRecv == 1 ? '' : 's');
foreach ($this->clients as $client) {
if ($from !== $client) {
$client->send($msg);
}
}
}
public function onClose(ConnectionInterface $conn) {
$this->clients->detach($conn);
echo date("Y-m-d H:i:s")." Connection {$conn->resourceId} has disconnected\n";
}
public function onError(ConnectionInterface $conn, \Exception $e) {
echo date("Y-m-d H:i:s")." An error has occurred: {$e->getMessage()}\n";
$conn->close();
}
}
client html :
$(document).ready(function(){
connect();
});
var wsUri = "ws://myserverdomain.comOrIP:9091";
function connect() {
var ws = new WebSocket(wsUri);
ws.onopen = function() {
var now = new Date();
console.log(now + ' Connected to '+wsUri);
};
ws.onmessage = function(e) {
var now = new Date();
console.log(now + ' Message Recived From Server :', e.data);
};
ws.onclose = function(e) {
var now = new Date();
console.log(now +' Socket is closed. Reconnect will be attempted in 1 second.', e.reason);
setTimeout(function() {
connect();
}, 1000)
};
ws.onerror = function(err) {
var now = new Date();
console.error(now + ' Socket encountered error: ', err.message, 'Closing socket')
console.error(err)
ws.close()
};
}