ASP.NET MVC 4.5 @ Url.Content产生错误的URL

hoping someone might be able to see exactly what this weird url is I am getting. Pretty standard setup, ASP.NET MVC 4.5, standard route, works fine, debugging local and also works deployed locally to an IIS site, but then I deploy to an internal DEV server, which I have deployed other APPS to and work fine, I got a URL like the following;hoping someone might be able to see exactly wha