Hi,
Regards,
This is applicable to change for the version of sharepoints used,
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1. Ensure that the web.config contains the appropriate configuration information when compared to the web applications settings.
2. Check the web application settings:
o Navigate to Central Administration – Application Management – Manage web applications.
o Select the web application in question
o Click on the ‘Authentication Providers’ link from the ribbon
o Choose the appropriate zone for the web application
o The dialog box will display the type of membership provider (Windows or Claims-Based Authentication).
o Record the name of membership provider for the specific zone in the ‘Authentication Provider’ dialog box.
3. Locate the web.config file for the web application:
4. Typically the web.config file is stored at C:inetpubwwwrootwssVirtualDirectoriesPort_Number
5. Verify the following section in the web.config file
6. <configuration>
7. <system.web>
8. <authentication mode=”” />
9. </system.web>
</configuration>
10. If the membership provider name is Windows, then authentication mode should be set to “Windows”.
11. If the membership provider is Claims-based authentication, then the authentication mode should be set to “Forms”.
