I have setup windows and forms based authentication on one of my web applications and have an issue while trying to sign in as fbaadmin. fbaadmin is one of the users I have added to the FBADB on SQL2008 through .NET users from IIS. I have no issue signing in using windows authentication but am unable to use the FBA user. I am also unable to even bring up the sign in page outside of the server. I get the same error screen in both cases. Here is a screenshot for reference. Please advise. Thanks FBA Sign in error

Event Log

  • How about posting some relevant log information? Apr 10, 2012 at 18:19
  • @rjcup3 I have attached a screenshot of the error from event logs Could you please take a look. Thanks
    – user7400
    Apr 11, 2012 at 16:45

1 Answer 1


Have you made the required changes to the web.config files in each of the following locations?

  1. SharePoint Central Administration
  2. Security Token Service ([SharePoint root]\WebServices\SecurityToken)
  3. Your web application

Should you wish to modify the web.config files by hand (do so carefully!), the instructions can be found in step III of this walk-through.

Alternately, you can make these same changes through the IIS admin interface. Detailed procedures for doing that can be found here.

I recall receiving similar errors to the ones you are seeing when I first set up FBA in SharePoint 2010 and did not correctly modify the STS web.config. Failing that, you can also set includeExceptionDetailInFaults="True" in the <serviceDebug> element of your STS web.config to get additional error information, as suggested in the screenshot from Event Viewer you posted above.

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