What to Do When the NI-9149 is Not Communicating with the Network

  • Ensure that the USB connections between the NI-9149 and the host computer and the Ethernet connections between the host computer and the router are secure.
  • Configure the IP and other network settings by completing the following steps.
    1. Use a USB A-to-B cable to connect the NI-9149 USB device port to a host computer. The USB driver creates a virtual network interface card and assigns an IP address to the NI-9149 in the format of 172.22.11.x.
    2. In MAX, expand your system under Remote Systems.
    3. Select the Network Settings tab to configure the IP and other network settings.
    4. (Optional) Use the RJ-45 Ethernet port 1 to reconnect the NI-9149 to the host computer. The NI-9149 attempts to initiate a DHCP network connection at powerup.
      Note If the NI-9149 cannot obtain an IP address, it connects to the network with a link-local IP address with the form 169.254.x.x. The host computer communicates with the NI-9149 over a standard Ethernet connection.
  • Ensure that you have the correct version of NI CompactRIO Device Drivers installed on the host computer. Visit ni.com/info and enter the Info Code swsupport for the minimum supported versions of LabVIEW and NI CompactRIO Device Drivers.
    Tip If you have recently upgraded LabVIEW, you must reinstall NI CompactRIO Device Drivers.
  • Ensure that the NI USBLAN adapter is recognized in the Device Manager. On Windows 7, select Start » Control Panel » Device Manager » Network adapters » National Instruments » USBLAN adapter. If the USBLAN adapter is not recognized, you must reinstall NI CompactRIO Device Drivers.
  • Temporarily disable any network firewalls or other security software.