Applies to Active IQ Unified Manager (UM) 9.6 and newer Oncommand Unified Manager 6.x through 9.5 Active Directory Remote Authentication Issue Active Directory test login fails: Unable to communicate ...Applies to Active IQ Unified Manager (UM) 9.6 and newer Oncommand Unified Manager 6.x through 9.5 Active Directory Remote Authentication Issue Active Directory test login fails: Unable to communicate with the authentication server because the authentication server is not configured properly. Verify your authentication server configuration. (LDAP error code: 49/52e)