Error (65): Cannot Establish Logos Server When Launching DIAdem

Updated Apr 18, 2023

Reported In


  • DIAdem Base
  • DIAdem Full
  • DIAdem Professional
  • DataFinder Server Base
  • DataFinder Server Advanced
  • DataFinder Server Professional
  • LabVIEW DataFinder Toolkit

Issue Details

I receive one of the following error messages when I launch DIAdem.
  • The DataFinder cannot start due to an internal error. (65): cannot establish Logos server.
  • Error on opening the "DataFinder" type data source ""My DataFinder"".

The error message can look similar to the image below:
error opening datafinder.jfif


The “Logos” component refers to the NI PSP Service Locator and even when no error message explicitly mentions the NI PSP Service Locator, the NI DataFinder relies on this service to function. The reason behind the error could be the NI PSP Service Locator service not running.

Follow the next steps to solve the issue:
  1. Run services.msc from the Windows start menu or from the Task Manager >> Services >> Open Services.
  2. Locate the NI PSP Service Locator service. Note: If the NI PSP Service Locator does not show up in this list, it is recommended to repair the DIAdem installation following the steps in this article: Repair Software In NI Package Manager (NIPM).
  3. ​Right-click the NI PSP Service Locator service and select Properties.
  4. Set the Startup Type to Automatic and click the Start button to run the service.
  5. Reboot the computer.
  6. Run services.msc once more, find the NI PSP Service Locator and verify the Startup Type is Automatic and the Status is Started.

If the above steps do not work, try the following: 
  • The "fast startup" setting in the Windows 8 or Windows 10 Power Options may prevent newly installed services from operating when you start the computer. Disabling the fast startup may help if the solution is not effective.
  • Should the NI PSP Service Locator service fail to start despite disabling the Windows fast startup, force reinstalling the NI software (DIAdem, DataFinder Server Edition, NI DataFinder Toolkit) with the fast startup already disabled could render the NI PSP Service Locator and NI DataFinder working correctly.
  • If the Startup Type and the Status had the expected values on step 2 or the error persists after completing the steps, disabling the Windows fast startup and reinstalling the software, contact NI Technical Support.
  • Check that the "Shared" folder and "_Legal Information.txt"  file are in the same drive as the installation files. For example C:\Program Files (x86)\National Instruments.

Additional Information

The behavior depicted in this document can also be seen when using NI DataFinder Server Edition or the LabVIEW DataFinder Toolkit.