Solving LMC problems

A certificate error appears when accessing LMC

Try one or more of the following:

Add the LDD self-signed certificate to your certificate store


Replace the LDD self-signed certificate with another trusted certificate


Contact your Lexmark representative

The browser shows a 5yy error when accessing LMC

Try one or more of the following:

Make sure that the system has been running long enough for all services to start

It may take several minutes to start all services when the system is first booted. If the system is recently booted, or the load balancer is overloaded, then wait a few minutes, and then try again.


Make sure that the load balancer is not processing a heavy load


Uninstall and reinstall the server that is not communicating

  1. On each computer where a server is installed, launch LMC by using the URL http://server:9788/lmc. Server is the IP address of the computer where the server is installed.

  2. Click the System tab.

  3. From the System section, select System Status.

  4. From the main section, uninstall the server that is not communicating.

    Note: If the entry remains in the servers list in LMC after uninstalling the server, then remove the server that is not communicating. For more information, see Viewing and changing server status.
  5. Reinstall the server.

    Note: Make sure that the correct IP address or FQDN is used for the database and load balancer when installing servers. If the server is installed on the same computer as the database and the load balancer, then use the FQDN of the computer.
  6. Launch LMC by using the http://loadbalancer:9780/lmc URL, where loadbalancer is the IP address of the computer where the load balancer is installed.


Uninstall and reinstall all LDD components

Make sure that the correct IP address or FQDN is used for the database and load balancer when installing servers. If the server is installed on the same computer as the database and the load balancer, then use the FQDN of the computer.


Contact your Lexmark representative

LMC responds very slowly

Try one or more of the following:

Remove servers that are not communicating

  1. On each computer where a server is installed, launch LMC by using the URL http://server:9788/lmc. Server is the IP address of the computer where the server is installed.

  2. From LMC, click the System tab.

  3. From the System section, select System Status.

  4. From the main section, select any servers that are not communicating, and then click Remove Server(s).

  5. Launch LMC by using the URL http://loadbalancer:9788/lmc, where loadbalancer is the IP address of the computer where the load balancer is installed.


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LMC does not finish loading or data is missing

Try one or more of the following:

Make sure that your web browser allows cookies for the IP address where you access LMC


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Cannot upload a formset

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Reports are not showing

Try one or more of the following:

Make sure that pop-ups are allowed for LMC in your web browser


Make sure that Adobe Reader is installed when running a PDF report


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Cannot access tasks in LMC

Try one or more of the following:

Make sure that the group to which the user belongs to has access to tasks


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Tasks are still accessible after privileges are removed

Try one or more of the following:

Make sure that the privileges of all the groups to which the user belongs to are configured correctly

For more information, see Assigning privileges to groups.


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The Solutions tab and the eSF Configuration task for device groups do not function

Try one or more of the following:

Make sure that the descriptor file of an eSF application that is included with a solution does not contain colons

For more information, contact your solution developer.


Uninstall and reinstall the solution that caused the problem

For more information, contact your Lexmark representative.


Contact your Lexmark representative

Jobs are not responding

Try one or more of the following:

Stop the failed task

If an error occurs while a job is being processed, then stop the task. This action terminates the job that is not responding but is still marked as running in LMC.

  1. From LMC, click the System tab.

  2. From the System section, select Jobs.

  3. Select the tasks that are not responding.

  4. Click Stop Task.


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Apache 2.4 service stopped and LMC cannot be opened

Make sure that the app server name is less than 60 characters long. For more information, see the Apache Tomcat Connectors documentation.