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Additional InformationAutomated Remote System Discovery Troubleshooting
NI System Configuration 15.0 introduces a troubleshooting utility to assist with device discovery issues. If using this tool with previous versions of NI MAX and LabVIEW, follow the steps below:
Install the latest version of NI System Configuration .Restart the host computer.Launch NI MAX.Right-click Remote Systems >> Troubleshoot Remote System Discovery.Carefully follow the instructions in the utility wizard.
Note: For NI System Configuration 15.0, the troubleshooting utility is not localized. It displays text only in English and detects only English versions of LabVIEW software regardless of the system's locale. Refer to the System Configuration 15.0 Known Issues list for more information. This is resolved in NI System Configuration 16.0.
Additional Troubleshooting Procedures
The following list contains less-common but effective troubleshooting procedures that can help with device discovery issues.
Consult the specifications in the device's user manual and ensure the device is receiving adequate power.Check the status and activity lights on the Ethernet port to see if they are lit/flashing. If the lights are not lit or flashing, try swapping in a new Ethernet cable.If the host computer has multiple network adapters, disable everything but the primary adapter and disable the computer's WiFi connection.
See How do I Connect to Ethernet Targets with Multiple Network Cards in the Host? and Best Practices for Using Multiple Network Interfaces (NICs) with NI Products for more details.
If the network has a DHCP server, contact the network administrator and ensure that there are free DHCP addresses that can be issued on the subnet.Contact the network administrator and ensure that a network switch is not disabling any ports or blocking traffic to the device.Contact the network administrator if adding a device to a DHCP network must be done manually.Ensure that the NI-RIO server settings are configured to allow all remote systems access to RIO devices.
Open NI MAX and select Tools >> NI-RIO Settings, then add a "*" to Remote Device Access.
Use a ping sweep to see if the device responds when it is on the same network as the host computer:
Connect the device to the host computer to set its link-local IP address (in the form of 169.254.x.x).Set your computer's IP address to match the format of 169.254.x.x so the device and the computer are on the same subnet.Perform a ping sweep as detailed by this article: (external link) Wikiversity: Computer Networks/Ping/Sweep.
If the device shows up in MAX but with Status: Disconnected, follow these instructions to reset the MAX database: How to Fix or Reset the NI MAX Database File.Reformating the RT controller can resolve issues with the the device's software.If you are connected via a Ethernet cable, try connecting via a Ethernet Router. This can resolve IP addressing issues. Some IT software block IPs considered invalid (Ex: cRIO-9014 when resetting IP assigns 0.0.0.0).
If this is applicable, use any network point or device that provides DHCP server so that the cRIO receives a valid IP address.
Force reinstall the NI-RIO driver by following these steps: Force Reinstall Non-Working or Corrupt NI Software.If the cRIO connects to other computers without issue and the most recent drivers are installed, try reimaging the host PC. In cases where you are directly connected via Ethernet Cable between Host PC and RT Target, verify network connection properties for your Ethernet Port.
Open Ethernet Properties from Control Panel » Network and Internet » Network ConnectionClick on Sharing Tab and enable the Internet Connection Sharing Options listed below.
Allow other network users to connect through this computer's Internet connection.Allow other network users to control or disable the shared Internet connection.
If you can establish an SSH connection using either the IP address or hostname of the device. Run the command iptables -F to clear all IP tables rules.
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