how to set idle time to none for thingworx user, so that my thingworx session doesn't get disconnected.

It is not possible to set it to n/a (making it indefinite), however, you may set up a very large number of minutes instead. Be advised that this is not a recommended approach as it may be causing a less secure environment for your application.

To chane the timeout, you may go to System -> Subsystems -> User Management Subsystem -> configuration:

Note that you do need to restart the tomcat for the settings to take effect. You may find more information in the helpcenter: http://support.ptc.com/help/thingworx_hc/thingworx_7_hc/#page/ThingWorx_Core_Help_Center%2FThingWorxHelpCenterDITAFiles%2FThingWorxModelDefinitionandComposer%2FSystem%2FSubsystems%2FUserManagementSubsystem.html

Kedar,

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