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Why PRTG may stop recording data as soon as the Windows GUI is closed

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This article lists reasons why PRTG Traffic Grapher may stop recording data as soon as the WindowsGUI is closed.

PRTG Traffic Grapher runs in two modes. As normal Windows GUI application using the logged in user account (this mode is used for configuration) or as service using the SYSTEM account (this enables data recording without the need to be logged in).

The service is usually started automatically as soon as you exit the GUI and the "Start with Windows" option is checked. But there are several possible reasons that may cause the service part to fail:

1. Windows 95/ME/98 do not support "services", data recording will only work while the GUI is working

2. Make sure that the "Start with Windows (Run as Service)" checkbox in the Extras|Options dialog is checked.

3. It is important that the configuration and data files are accessible from both accounts. The WIndows GUI runs under the account of the user starting the GUI, the service by default runs in the SYSTEM account. If you store the data in the "my documents" folder other accounts may not be able to see the data. If PRTG does not find the last used configuration file it starts up with a fresh empty configuration (which causes the service to do nothing). The same problem can happen if you use a mapped network drive or if user file rights are in the way.

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