EDIT
The 404 error persists even after having corrected the route to match the Action per below.
EDIT 2
The URL I'm trying to reach has a . in it which I think is causing problems since the other article URL doesn't have one and works fine. How do I url encode this out?
I'm normally totally fine with /site/contoller/action/param type urls
For my blog site I want something different though.
Here's an example of an existing link for one of my blog articles:
/Article/tweaking-asp.net-identity-to-add-first-and-last-name-as-username
I have the Index View on the Article Controller accepting a param called slug:
public ActionResult Index(string slug)
{
    ApplicationDbContext Context = new ApplicationDbContext();
    var Article = Context.Articles.FirstOrDefault(x => x.Slug == slug);
    // get and list articles and build the ViewModel
    return View(Model);
}
I updated my RouteConfig.cs to handle this, but I seem to have botched it as I get an HTTP404 error when I try to navigate to an article with this config.
routes.MapRoute(
    name: "Articles",
    url: "Article/{slug}",
    defaults: new { controller = "Article", action = "Index", slug = UrlParameter.Optional }
);
How can I route correctly to this type of URL?
 
     
    