There is an error in the LDAP authentication settings, LDAP server, or network configuration.
- Make sure that a connection test is successful with the current LDAP server configuration.
If connection is not successful, an error in the network settings might have occurred.
Check the domain name or DNS settings in "Interface Settings". - Make sure the LDAP server is specified correctly in the LDAP authentication settings.
- Make sure the login name attribute is entered correctly in the LDAP authentication settings.
- Make sure the SSL settings are supported by the LDAP server.