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Jet Scheduler - A specified logon session does not exist...


When attempting to create a scheduled task using the Jet Scheduler, the following error message is displayed:


Complete text of error message is:

The task '{task name}' could not be created. The following error was reported:

A Specified logon session does not exist. It may already have been terminated. (Exception from HRESULT: 0x80070520)


The error is caused by a Local Security Policy that has been modified on the system.


  1. Open the Local Security Policy editor.

    Windows Control Panel > Administrative Tools > Local Security Policy

  2. Expand Security Options.

    Local Policies > Security Options

  3. The following policy must be set to 'Disabled'

    Network access: Do not allow storage of passwords and credentials for network authentication. 


    If your organization utilizes Microsoft Group Policy Objects this setting will need to be modified at that level.
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