NI Serial Device Not Showing up in MAX or Windows Device Manager

Updated Sep 17, 2018

Reported In


  • USB-232


  • NI-Serial

Issue Details

I am using an NI Serial device and it is not showing up in Windows device manager, or in MAX. How can I fix this?


You will need to do one of the following:
  1. Install NI Serial, if you have not done so yet.
  2. Repair NI Serial.
  3. Force reinstall NI Serial.
  4. Upgrade NI Serial.

Additional Information

Your NI Serial device may be showing up in Windows device manager, but is hidden. To see it you will need to open device manager, select view >> show hidden devices, and now you should see the serial device, but it will have a yellow exclamation mark and be grayed out. From here you can manually associate the device to the NI Serial driver.


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