Why is NI MAX Running Slow, Losing Connection to Ethernet Devices, Freezing the OS?

Updated Dec 28, 2023

Reported In


  • Measurement and Automation Explorer (MAX)


  • NI-DAQmx

Issue Details

  • Opening NI Measurement & Automation Explorer (NI MAX) takes some minutes and does not let me communicate with my Ethernet cDAQ devices, losing connection intermittently.
  • NI Measurement & Automation Explorer (NI MAX) is running slow.
  • Sometimes it also freezes the OS or parts of the GUI freeze or load for extended periods of time.



This problem could be related to a corruption of the NI MAX database, due to an incorrect installation of the DAQmx driver or NI System Configuration.

Try the following suggestions to resolve this error: 
  • Reset the configuration data of the NI MAX. To achieve this, follow the steps provided in How to Fix or Reset the NI MAX Database.
  • Be sure that the driver DAQmx is installed. To achieve this, follow the steps provided in Determine the Version of the NI Software Installed on My Computer
    • Even if the driver is installed correctly, it may happen that your antivirus can block the writing of some files when you install the DAQmx driver. Uninstall the driver, disable the antivirus, and reinstall the DAQmx driver.
  • Reinstall or update NI System Configuration to the latest version in NI Package Manager or download the package from NI System Configuration.