IIS 7.5 returning a 404 for one MVC route, but only when deployed

asp.net-mvchttp-status-code-404iis-7.5

I have a site that is working fine on my local dev machine. When I run everything in IIS Express, the site is working fine. However, when i deploy my app to production, everything but one route is working. That one MVC route is returning a 404 error.

I turned on Failed Request Tracing and have the trace file. All i can see in it is that there is a warning on the "Module Set Response Error Status" and it says it came from the ManagedPipelineHandler.

There's nothing I can find unique about this route. Everything I can find says it should work, but for some reason it doesn't.

The Failed Request Tracing reads like a set of stereo instructions. I'm not sure what I should be looking for.

Best Answer

1) Try adding following code in your web.config file:

<system.webServer>
<modules runAllManagedModulesForAllRequests="true" />
<!-- rest of config -->
</system.webServer>

2) Make sure that your application is running under ASP.Net 4.0 integrated pipeline mode. If not, set this application pool to integrated pipeline mode and recycle it once.

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ASP.NET MVC Resource not found

From my experience with ASP.NET MVC, I've seen that a Default.aspx page is required for IIS to function correctly. I'm using the page that was included in the ASP.NET MVC 1 template. Unfortunately, the ASP.NET MVC 2 does not include this page (to the best of my knowledge), so you should add the following to your project:

Default.aspx:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="YourNamespace._Default" %>

<%-- Please do not delete this file. It is used to ensure that ASP.NET MVC is activated by IIS when a user makes a "/" request to the server. --%>

Default.aspx.cs:

using System.Web;
using System.Web.Mvc;
using System.Web.UI;

namespace YourNamespace
{
    public partial class _Default : Page
    {
        public void Page_Load(object sender, System.EventArgs e)
        {
            // Change the current path so that the Routing handler can correctly interpret
            // the request, then restore the original path so that the OutputCache module
            // can correctly process the response (if caching is enabled).

            string originalPath = Request.Path;
            HttpContext.Current.RewritePath(Request.ApplicationPath, false);
            IHttpHandler httpHandler = new MvcHttpHandler();
            httpHandler.ProcessRequest(HttpContext.Current);
            HttpContext.Current.RewritePath(originalPath, false);
        }
    }
}

401 – Unauthorized On Server 2008 R2 IIS 7.5

Sometimes you have to take a step back... The cause of this was I had a Html.RenderAction() in my view that called an action method that was marked with the [Authorize] attribute.

Best Answer

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