UIM AD authentication ISSUE
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UIM AD authentication ISSUE


Article ID: 241764


Updated On:


DX Unified Infrastructure Management (Nimsoft / UIM)


One of my UIM application stopped authentication with active directory. I tried lookup and testing the connection under HUB probe and getting the below error at log:-

May 13 16:52:03:930 [13428] 0 hub: do_ldap_query [LDAP] - open failed: auth (ldap_simple_bind_s) failed: 'Server Down' (81)


Release : 20.3

Component : UIM - HUB


  1. You are trying to authenticate to port 389 when the LDAP server is set for SSL only.
  2. If the bind account is invalid, you can get an error code 81.
  3. An incorrect certificate when connecting with SSL can also throw an error code 81.


This problem can occur when there is an LDAP or Active Directory server outage. There can also be networking or domain problems can cause this. If the problem is intermittent, it is possible that ClearQuest-LDAP is pointing to a network alias or load-balancer, and that some or all of the servers behind it are experiencing problems. In any of these cases, it is best to report the problem to the network or domain administrator for investigation.