Selft Test Failed When Using a NI-XNET Device

Updated Oct 21, 2021

Reported In


  • PCI-8512
  • USB-8502


  • Measurement & Automation Explorer (MAX)



Issue Details

I am using a NI-XNET device and I can detect the device in NI MAX but I am seeing this error:

NI-XNET:  (Hex 0xBFF630BA) The NI-XNET driver timed out when performing low-level communication with the device. This could occur if the device was removed, communication with its parent chassis failed, or a general hardware failure occurred.

newPC_selfTest NOT OK.png


If you are using a PCI card,
  • it should be connected to a native PCI port. A bridge PCI port should not be used.
  • Remove all other PCI cards if you are using multiple PCI cards in the same desktop or industrial PC. It could be due to the limitation of the power supply.
  • Increase the PCI Timeout time in BIOS. You might need to refer to the user manual of the desktop for the steps.
If you are using a USB card.
  • Try to connect the card in a second USB port.
  • Check with your IT team that there isn't any block on your USB ports