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Home > Success Center > Database Performance Analyzer (DPA) > DPA - Knowledgebase Articles > Cannot authenticate to remote DPA instances from a Central DPA using AD/LDAP

Cannot authenticate to remote DPA instances from a Central DPA using AD/LDAP

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Created by Interspire Import, last modified by MindTouch on Jun 23, 2016

Views: 923 Votes: 0 Revisions: 11


You cannot authenticate to a remote DPA instance from the DPA Central Server. This can happen in the following cases:

  • The DPA Central Server cannot connect to your AD/LDAP domain server.
  • The credentials supplied are invalid.

This is a side effect of one of our anti-lockout features for AD/LDAP. Many AD/LDAP servers are configured to lock out user accounts for failed passwords. To avoid locking accounts, we don't try to log on to any remote instances using AD/LDAP if you don't log on to the Central DPA with a valid AD/LDAP credential first.


  • Log on to the Central DPA using valid AD/LDAP credentials.
  • Log on to each remote DPA instance separately without using the Central DPA.
  • If your AD/LDAP server does not lock out user accounts for failed password failures, you can configure your Central DPA instance to always attempt authentication with remote DPA servers:
    1. Edit the file <dpa>\iwc\tomcat\ignite_config\idc\
    2. Add the following line:
    3. Save the file and then restart the Central DPA. 


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