Display ADFS 2.0 Forms Authentication Login Page Instead of Windows Authentication Prompt

After installing ADFS 2.0 for SharePoint a Windows login prompt was shown when the SharePoint site forwarded to the ADFS server instead of the ADFS Forms Authentication login screen. 



No matter what account I tried to use here I would eventually receive a 401 Not Auhorized error.




The reason for this is that the ADFS website tries to use Windows Authentication before trying to use the Forms authentication which displays the loging page below.


Forms Login Screen for ADFS 2.0


To fix this do the following on the ADFS server:

1. Open IIS and Explore under Default Website\adfs\ls


2. Open the web.config file with Notepad, look for the localAuthenticationTypes section.



3. Move the line for Forms above the line for Integrated and save the web.config file.  This will force the ADFS application to use the Login Page authentication before trying to use Windows Authentication.


 

Comments

  1. Pat PattersonMarch 25, 2011 at 2:11 PM

    Thanks for posting this - it fixed exactly the problem I was having in being able to show the difference between form-based authn and IWA.

    ReplyDelete
  2. Job VermeulenMay 9, 2011 at 6:08 AM

    But now users that could use SSO with Windows Auth. get the Forms login too.

    This is no solution to mix.

    ReplyDelete
  3. DudeJuly 22, 2011 at 8:57 AM

    This is set in the web.config, the wsFederation node: authenticationType.

    ReplyDelete
  4. AnonymousAugust 15, 2011 at 6:55 PM

    Thanks for the info! Never thought about the XML order being relavent.

    I was actually having the inverse issue where internal users would get Integrated Auth and external would have Forms from the ADFS Proxy. Moving the basic before the forms on the Proxy gives them a similar experience.

    Thanks!

    ReplyDelete
  5. harminder datlaSeptember 14, 2011 at 2:26 PM

    hi ,

    i am getting an exception 404 not found
    please help me to rresolve this, i have already done web config changes.

    thanks
    harminder datla

    ReplyDelete
  6. UnknownNovember 23, 2011 at 5:24 PM

    I want to add two pages for FormsSignIn
    one is for normal browser, another is for mobile browser.
    Can I add two in web.config

    ReplyDelete
  7. Pradeep KumarDecember 12, 2011 at 8:48 AM

    Hi Richard,

    Is it possible for adfs server to use Forms authentication or we have to take adfs server proxy for Forms Authentication ?

    Thanks in advance
    Pradeep Kumar

    ReplyDelete
  8. Jeff KykerMarch 5, 2012 at 11:32 AM

    AMAZING! So easy to do! Just so hard to find. I gave one more effort to find a solution this morning and landed on yours and it worked instantly. Thank you sooo much.

    ReplyDelete
  9. EugeneApril 5, 2012 at 1:05 AM

    Thanks.

    This wasn't my exact issue but got me going in the right direction on my issue.

    ReplyDelete
  10. yahooMarch 6, 2013 at 1:37 AM

    it works perfectly. Thanks a lot

    ReplyDelete
  11. Simon de LisleMay 23, 2014 at 2:12 AM

    Fantastic - 2 days of trying to figure this out and a guy gives me a link to this page and BANG! Sorted.

    Thanks for taking the time to document this so clearly.

    ReplyDelete
  12. UnknownMarch 15, 2015 at 11:03 AM

    Thank you so much. This helped me resolve my problem.

    ReplyDelete
  13. UnknownMarch 1, 2016 at 12:39 AM

    Thanks Richard.

    By the way, is there a way we can have the signed in windows users auto-login to the websites?

    ReplyDelete
  14. UnknownJune 11, 2019 at 2:34 AM

    Hi Richard,

    If I use below snippet in config() method of spring security configuration, will it be work for me as well?

    -> http.formLogin().loginPage("/saml/login");

    ReplyDelete

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