Error -209836 in DAQmx Start Task on TSN-Enabled cRIO or cDAQ

Error -209836 occurred at DAQmx Start Task.vi

Possible reason(s):

The devices in your task cannot be synchronized. This may be because there are no available synchronization mechanisms between the devices.

Some synchronization paths are not available in interactive tools like the DAQ Assistant. To determine whether synchronization between these devices is possible, try deploying and executing your task in your application environment.

 

The error is shown in the following dialog box:

This error appears due to NI-DAQmx attempting to start a task before the synchronization domain is complete, or where poor networking performance results in TSN not being found when the task begins. To solve the issue, review the steps listed below:

• If you are using an external server for synchronization, check your network configuration to validate that the server is reachable from your acquisition device.  
• This error may appear due to corruption of the NI MAX Database, so resetting the NI MAX Database may work.
• Try resetting your DAQ device before configuring and running your task. To do so programmatically, you can use the DAQmx Reset Device VI.
• Create a loop to call the DAQmx Start Task VI until the error -209836 is not generated before continuing with the rest of the execution.  For more information, please refer to the image below:

Note: This image is a LabVIEW snippet, which includes LabVIEW code that you can reuse in your project. To use a 
snippet, right-click the image, save it to your computer, and drag the file onto your LabVIEW diagram.