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Discovery Error 84 - Protocol Error (LDAP_DECODING_ERROR)

2019-08-23 09:24:01
Active Directory Errors Troubleshooting UnitySync 

This error is sometimes seen when reading Active Directory in the Discovery phase. UnitySync encounters an error while decoding the LDAP response received from the server which results in truncated data in the Discovery phase.

Example log output:

Search Structure Return  | 84 - Protocol Error  
Failed Structure         | CN=SubOU,ou=Parent,dc=domain,dc=com

Example Error in Run Summary :

LDAP_DECODING_ERROR (84) - Net::LDAP> encountered an error     |    1  
 while decoding a response packet from the server.

The Discovery or Sync phase will ABORT if Error 84 is detected.

Most often this problem can be resolved by reducing the Paging Support size. To do this:

  • Create a custom sourcedef and add the following parameter: paging-support=100
  • Click Save.
  • Click Apply.
  • Try the Discovery again.
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