ERR_CONNECTION_REFUSED with reactTimers
I put this code in the __construct of the class that handles connections and now I can not connect to my server, returns **ERR_CONNECTION_REFUSED**

```
use React\EventLoop\Factory; 
....
protected $loop;

public function __construct() {
    $this->loop = Factory::create();

    $this->loop->addPeriodicTimer(600, function() {
        return $this->functionLoop();
    });

    $this->loop->run();
}
```

why?
