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Error message while installing PRTG Core Server or Remote Probe



When executing PRTG Network Monitor Setup or PRTG Remote Probe Installer setup.exe files, I get one of the following error messages:

You can not install a PRTG core server while a remote probe is installed. Please deinstall PRTG probe first!

Sorry. This machine already has a full installation of PRTG Network Monitor. You can not install just the Remote Probe, you have to update the full installation.

What can I do?

core-server core-service installation prtg remote-probe-install remote-probe-service

Created on Mar 14, 2011 8:51:56 AM by  Daniel Zobel [Product Manager]

1 Reply

Accepted Answer



Repair an Installation

This message should never show up for healthy installations of PRTG. Somehow the installation of PRTG has been mixed up.

You cannot install a remote probe on a system on which a PRTG core server is already installed. Likewise, you cannot install a PRTG core server on a system running a remote probe.

The preferred solution is to uninstall the installed PRTG product, delete the {program files}\PRTG Network Monitor folder and delete the PRTG Network Monitor registry key.

If this is not an option you can also try the following not officially supported method:

You Want to Install a PRTG Core Server

The locally installed probe must be set to "Act As Local Probe". To install a PRTG core server on a system you have already installed a remote probe on, please

  • Open the PRTG Probe Administrator application from the Windows start menu.
  • In the Probe Settings tab, change the setting for Connection to PRTG Core Server to Act as Local Probe.
  • Save your settings and confirm restart of PRTG services.

You can now proceed with the installation of PRTG core server on this machine.

You Want to Install a Remote Probe

The "PRTG Core Server" service must not be installed on a system where you want to install a remote probe. To uninstall the core server service, please open a command line window and move to the folder where PRTG is installed:

  • On 64 bit systems: cd "%ProgramFiles(x86)%\PRTG Network Monitor"
  • On 32 bit systems: cd "%ProgramFiles%\PRTG Network Monitor"

Now enter the following command:

"PRTG Server.exe" -uninstall -silent

You can now proceed with the installation of a PRTG remote probe on this machine.

Created on Mar 14, 2011 9:04:32 AM by  Daniel Zobel [Product Manager]

Last change on Mar 15, 2011 9:34:43 AM by  Daniel Zobel [Product Manager]

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.