LDAP troubleshooting

LDAP lookups fail

Try one or more of the following:

Make sure that the server and firewall settings are configured to allow communication between the printer and the LDAP server on port 389 and port 636

The default ports are port 389 and port 636.

If reverse DNS lookup is not used in your network, then disable it in the Kerberos settings

  1. From the Embedded Web Server, click Settings > Security .

  2. From the Network Accounts section, click Kerberos .

  3. From the Miscellaneous Settings section, select Disable Reverse IP Lookups .

  4. Click Save and Verify .

If the LDAP server requires SSL, then enable SSL for LDAP lookups

Some solutions that provide authentication may require you to enable SSL for LDAP lookups. For more information, see the administrator’s guide for the solution.

Narrow the LDAP search base to the lowest possible scope that includes all necessary users

Make sure that all LDAP attributes that are being searched for are correct