Unable to Add Network cDAQ Due to Error -201369

Updated Aug 22, 2019

Reported In


  • cDAQ-9181
  • cDAQ-9184
  • cDAQ-9185
  • cDAQ-9188
  • cDAQ-9189
  • cDAQ-9191


  • NI-DAQmx

Issue Details

I have multiple network cDAQ and set the same host name and ip address because I want to switch the cDAQ without any modification of the program. I've already add one cDAQ to my MAX, and when I try to add other network cDAQ such as cDAQ-9181, I got an error -201369 and it says the same name already exists in the system. (Or error -201251 occurs and it says the device could not be found.) How can I resolve this problem?


You need to remove the previous cDAQ from MAX which has the same name. Then you can add the other network cDAQ without any errors.

Error -201251 can occur due to IP address conflict.
It is recommended to check that the address is not blocked by any device.