Solving problems with LMC

The browser displays a 5yy error when accessing LMC

When services are starting on the system or the system is under a heavy processing load, your browser may display a 5yy error, such as “500 Internal Server Error” or "503 Service Unavailable," when you try to access LMC.

  1. Make sure 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.

  2. If the load balancer is under a heavy processing load, then try again when the system is processing fewer jobs.

  3. Determine whether a problematic server installation is causing LMC to be inaccessible through the load balancer:

    1. Access LMC directly on each server using the URL http://server:9788/lmc, where server is the computer where the server is installed.

    2. If you can successfully access LMC directly on a server, then use the System Status task on the System tab to determine whether any of the servers in the system are not communicating.

    3. If any server is not communicating, then uninstall it from the computer where it is installed.

      Note: If this is not possible, or if the entry remains after uninstalling, then select the non-communicating server or servers in LMC, and then click Remove Server(s).
    4. Access LMC using the load balancer address.

  4. If the issue is still not resolved, then uninstall and reinstall all components, making sure to enter correct addresses for the database and load balancer where applicable.

LMC responds very slowly

Several servers that are not communicating may cause LMC to respond very slowly.

Determine whether non-communicating servers appear in LMC:

  1. Access LMC directly on an active server using the URL http://server:9788/lmc, where server is the computer where the server is installed.

  2. Use the System Status task on the System tab to determine whether any of the servers in the system are not communicating.

  3. If any servers are not communicating, then select them from the list, and then click Remove Server(s).

  4. Access LMC using the load balancer address.

LMC does not finish loading or data is missing

If cookies are not enabled, then LMC may continue to display Loading for an extended period after logging in, or data may be missing or incorrect on some screens.

Try one or more of the following:

An error occurs when uploading a formset

Make sure you have Adobe Flash Player 10 or later installed. If your Web browser settings do not allow ActiveX controls to run, then you must upgrade manually on the Adobe Web site.

Reports are not displayed when run

  1. Make sure pop-ups are allowed for LMC in your Web browser.

  2. If you are running a PDF report, then make sure Adobe Reader is installed.

User cannot access some tasks in LMC

Check with the administrator if the group to which the user belongs has limited access to that task.

User can still access tasks even after privileges are removed

Check the Privileges settings of all the groups to which the user belongs. For more information, see Assigning privileges to groups.

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

A descriptor file for an eSF application included with a solution may have contained tag names that included colons. Multiple errors may have occurred while uploading the solution.

  1. Contact Lexmark Professional Services for assistance in manually removing the solution that caused the problem.

  2. Contact the developer of the solution to have colons removed from descriptor files for associated eSF applications.

  3. Reinstall the solution.

Jobs do not respond after an error occurred

If an error occurred while a job is being processed, then stop the specific job. This terminates the job that is no longer responding but is still marked as running in LMC.

  1. Click the System tab.

  2. Select Jobs from the System list.

  3. Select the tasks that do not respond, and then click Stop Task.