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Connecting to Ethernet Targets with Multiple Networks Cards in the Host

Hardware: Compact FieldPoint>>Controllers, CompactRIO>>Controllers, PXI/CompactPCI>>Controllers, Image Acquisition (IMAQ)>>Compact Vision System

Problem:
I am trying to connect to a Real-Time system. It might be a PXI Chassis, cRIO, Compact FieldPoint, or Desktop ETS. In my host computer I have multiple Ethernet cards. I cannot connect to the Real-Time target. What could be the problem?

Solution:
National Instruments software uses the system default network card to connect to Real-Time devices and other targets. If you have multiple network adapters it is possible that you are connecting to your target with the secondary network adapter. You must either:

1. Connect your device to the default Ethernet card.
   
   
2. Change the Ethernet port connected to the Real-Time target to default.
   
   •  Navigate to Control Panel»Network Connections»Advanced» Advanced settings...
     
     
     
     
   • Press the Up and Down arrow to rearrange the adapters.  Move the RT connection to the top of the list to make it default.  Click OK to apply the changes.
     
     
     

Related Links:
KnowledgeBase 3WK9NH9A: Deploying Shared Variables to a Specific Network Card
KnowledgeBase2QAE9QIT: Can I Use Multiple Network Cards with LabVIEW?
KnowledgeBase 3VQ6278T: Can I Use Multiple Network Adapters in a PXI or Desktop Real-Time System?

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Report Date: 10/19/2006
Last Updated: 09/29/2007
Document ID: 42I77BXJ

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