Plugin route registration issue

At this moment, I am register at AreaRegistraion as below:-

 public class AdminAreaRegistration : AreaRegistration
    {
        public override string AreaName
        {
            get { return "Admin"; }
        }

        public override void RegisterArea(AreaRegistrationContext context)
        {

                    context.MapRoute(
                        "custom_admin_order",
                        "Admin/Order/List/",
                        new { controller = "CustomOrder", action = "List", area = "Admin", id = "" },
                        new[] { "Misc.CustomAdminOrder.Controllers" });

        }
    }



It is working, but sometime doesn't work and need to restart the application several times to make it work.

So right now I need a better way to make it 100% work.