Solving discovery problems

Discovery and policy updates are running slowly

Try one or more of the following:

Make sure that communication is allowed among all system components

Check the proxy, firewall, and other network settings across the LDD system.


Make sure that the network bandwidth is sufficient during discovery and policy updates


Reduce the chunk size of multiple servers

For more information, see Configuring chunk size for device discovery and policy updates.


Increase the timeout period of devices during policy updates

This configuration allows sufficient time for policy updates that include the deployment of eSF applications to complete. For more information, see Configuring policy updates.


Discover only new devices

For more information, see Manually discovering printers.


Contact your Lexmark representative

Discoveries frequently time out

Try one or more of the following:

Make sure that communication is allowed among all system components

Check the proxy, firewall, and other network settings across the LDD system.


Make sure that the network bandwidth is sufficient during discovery and policy updates


Increase the NPANT timeout period

For more information, see Configuring NPA device communication.


Contact your Lexmark representative

Cannot discover some printers on the network

Try one or more of the following:

Make sure that communication is allowed among all system components

Check the proxy, firewall, and other network settings across the LDD system.


Make sure that all printers in the LDD system have the same read community name and write community name

For more information, see Configuring SNMP for discovering devices.


Make sure that the SNMP v3 read and write credentials are the same as the SNMP v3 credentials of the printer

For more information, see Configuring SNMP for discovering devices.


Make sure that the discovery profile is configured correctly

For more information, see Creating a discovery profile.


Enable the printer mDNS

  1. From the Embedded Web Server, click Settings > Network/Ports > TCP/IP.

    Note: For a list of supported printers in each device class, see Supported printer models.
  2. Select Enable mDNS.

  3. Click Save or Submit.


Make sure that the "Secure mode active" setting is disabled

Disable the setting for the following printer models:


Contact your Lexmark representative