FormMethod.Post didn´t work with not default action. Razor and MVC 4

[Paty_RR]

I´m new in MVC with Razor... I´m trying to do a login page, so i have this code in my cshtml:

Código ASP:

@using (Html.BeginForm("LogOn", "Login", FormMethod.Post))
{
    @Html.LabelFor(m => m.usuario)
    @Html.TextBoxFor(m => m.usuario)
 
    @Html.LabelFor(m => m.password)
    @Html.PasswordFor(m => m.password)
 
    @Html.LabelFor(m => m.rememberMe)
    @Html.CheckBoxFor(m => m.rememberMe)
 
    <input type="submit" value="Iniciar sesión" />                   
}
 

In the controller i have this:

Código ASP:

public class LoginController : Controller
{       
    public ActionResult Login()
    {
        return View();
    }
 
    [HttpPost]
    public ActionResult LogOn(Login lg)
    {
        if(//valido mi usuario)
        { 
            return RedirectToAction("MyContent", "MyContent");
        }
 
        return View("Login");
    }
 }
 

But it never called the action "LogOn" it only called the action default "Login" and i don´t know which is the error...

Pleas help me!!!

Thanks!