Cannot Detect Devices in FlexLogger

Updated Dec 1, 2022

Reported In


  • CompactDAQ Chassis


  • FlexLogger

Issue Details

When I open a FlexLogger project, it cannot find my CompactDAQ device or I get No Device(s) Detected error message.
How can I see my device in FlexLogger?


Check the following options to resolve the issue:
  • Verify that you can see your device in NI MAX. If you cannot:
  • If you can see the device in NI MAX, reinstall FlexLogger or install a different version.
  • Ensure that your hardware is supported in the version of FlexLogger you are using.
  • It has been seen that some Antivirus or Firewalls are blocking the communication between your cDAQ device and your FlexLogger, check that this is not the case.
  • Check if there are any Services in Windows related to NI that are stopped or different from 'Running'. If so, restart the service.
  • Check that FlexLogger is correctly licensed in the NI License Manager. Try deactivating and re-activating the FlexLogger license. If you are using a trial license of FlexLogger, contact NI Support to get a temporary activation code if none of the steps above fix the issue.