Check to see if you can test the camera in NI MAX. The below picture shows the non working state.
- Check that you are not using the camera in other applications that may run in the background, such as Skype.
- Try plugging in the camera using a USB connection whilst your device is not connected to the internet as another LabVIEW program may be accessing the camera over the network.
- As a final resort please reformat and reboot your camera
If you are still having troubles please contact National Instruments.