[jordansch]

Make sure that the IP address of your laptop, D-link, and cRIO are all different. Another possibility is that the wire between the cRIO and the Dlink is bad, or possibly you need to reimage your cRIO (if you have not already done so this year).
One problem our team ran into a few years ago is that the school started blocking our 2.4 gHz. wi-fi signal. Try switching to 5 gHz (if your computer can run that) and see if that works. (just flip the switch on the D-link, computer should change automatically).