I am trying to Configure a SharePoint 2016 Web Application with Forms Based Authentication with a LDAP membership provider, I followed the same steps mentioned in the below articles.



when I browse web application and select forms-based authentication i get the following error in uls logs.

STS Call: Failed to issue new security token. Exception: System.ServiceModel.FaultException`1[Microsoft.IdentityModel.Tokens.FailedAuthenticationException]: The security token username and password could not be validated. (Fault Detail is equal to Microsoft.IdentityModel.Tokens.FailedAuthenticationException: The security token username and password could not be validated.).

An exception occurred when trying to issue security token: The security token username and password could not be validated.

I want to verify for SharePoint 2016 below DLLs version number is valid or not?

type="Microsoft.Office.Server.Security.LdapMembershipProvider, Microsoft.Office.Server, Version=, Culture=neutral, PublicKeyToken=71e9bce111e9429c"

Microsoft.Office.Server.Security.LdapRoleProvider, Microsoft.Office.Server, Version=, Culture=neutral, PublicKeyToken=71e9bce111e9429c

  • Can you please check if an event ID 8306 is being triggered in the event viewer for this ? Please let me know if it is ? – yash.kamdar Aug 5 '19 at 7:44

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