ASP.NET MVC3 and Windows Auth on IIS keeps redirecting to /Account/Login

Question

I'm running MVC3 and a windows auth web application. When I deploy to IIS6 it runs great until I hit a page that requires authentication. It then is auto-redirecting to /Account/Login when I have no trace of that in my application and my web.config is configured to windows auth.

Any ideas?

Here is my entire web.config file: http://pastie.org/1568510

Answer 1

Check whether you have WebMatrix.Data.dll and/or WebMatrix.WebData.dll deployed in the bin directory of your application. If they are there (and you know you don't use them) then try removing them and accessing a page that requires authentication.

Answer 2

I know this is a super old post. But I just ran across this after going through a tutorial on upgrading from MVC 4 to MVC 5. So I'm throwing it on just in case anyone else makes the mistake I did. My issue ended up being that I accidently added 'Microsoft.AspNet.WebPages.WebData' to my project while upgrading my references.

Running "Uninstall-Package Microsoft.AspNet.WebPages.WebData" restored my authentication to it's previous glory.

Answer 3

Another way to override "login.aspx url redirection problem with MVC + IIS 7"... by adding this to your appSettings (web.config) :

<authentication mode="Forms">
<!--<forms loginUrl="~/Account/Login" timeout="2880" />-->
<forms loginUrl="~/Home" timeout="2880" />
</authentication>

...This resolved the problem for me

Answer 4

Try override WebMatrix.dll default for login url by adding this to your appSettings (web.config) :

<add key="loginUrl" value="~/Account/LogOn"/>

WebMatrix.dll set the login Url to /Account/Login, if this key isn't set in the config file... It works for me.

Answer 5

Make sure that all the authentication settings in IIS are correct.

For me the application that redirected to /Account/Login was running within a site that Anonymous authentication enabled. After disabling this in the site and enabling it for the application (together with Windows authentication) it was ok.

Answer 6

I had the same issue in my MVC4 project, only my project has Anonymous Authentication disabled outright, so Windows Authentication is always required.

I have no WebMatrix.* in my bin folder, and adding the autoFormsAuthentication and enableSimpleMembership keys to appSettings didn't do it for me.

Instead, I had to comment out the following:

<authentication mode="Forms">
    <forms loginUrl="~/Account/Login" timeout="2880" />
</authentication>

And replace it with this:

<authentication mode="Windows" />

That did the trick.

Answer 7

You can also go to the IIS on the server and go into Authentication modes and disable forms authentications.

This has me scratching my head in a demo. Embarassing.

Answer 8

In RTM try to add to <appSettings> in Web.config:

<add key="enableSimpleMembership" value="false" />

(Thx to Problem exclusively using Windows Authentication in ASP.NET MVC 3 Beta.)

Answer 9

Not sure if you still have the issue or not, but try adding

<add key="autoFormsAuthentication" value="false" />

to your web.config under appSettings. According to here and here, that should solve your problem.

Answer 10

In MVC for the 4.6 Framework this is done in 2 ways, the first is in the Web.Config as you would expect, the second one is done in the projectfile and is used to configure IIS Express:

<PropertyGroup>
..
    <IISExpressAnonymousAuthentication>enabled</IISExpressAnonymousAuthentication>
    <IISExpressWindowsAuthentication>disabled</IISExpressWindowsAuthentication>
</Property

Will disable Windows authentication and use anonymous when developing but is not used for the deploying the application.

Answer 11

I was using nopCommerce 2.65 and had this issue.

I did not have any of WebMatrix.Data.dll nor WebMatrix.WebData.dll deployed in the bin folder, but adding

<add key="autoFormsAuthentication" value="false" />
<add key="enableSimpleMembership" value="false" />

in the web.config solved it.

Answer 12

I fixed it this way
1) Go ot IIS
2) Select your Project
3) Click on "Authentication"
4) Click on "Anonymous Authentication" > Edit > select "Application pool identity" instead of "Specific User".
5) Done.

Answer 13

In RTM try to add to in Web.config:

<add key="enableSimpleMembership" value="false" />

The above post works. +1 Add this key before adding deployable dependencies.