Support Article
LDAP authentication not working
SA-21644
Summary
LDAP authentication is not working in Pega.
Error Messages
User sees the error "Unauthenticated or not available when logging in using LDAP url.
Steps to Reproduce
Not Applicable
Root Cause
A defect or configuration issue in the operating environment. LDAPAuthentication activity was used in the in the authentication service rule for LDAP authentication, which adheres to PRExternal scheme of authentication and is deprecated.
Resolution
Perform the following local-change: Change the LDAP authentication service to call AuthenticationLDAP activity which uses PRCustom scheme for authentication.
Published April 1, 2016 - Updated October 8, 2020
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