Did you build and deploy an application to the cRIO and set it to "run at startup"? If not, you'll need to reconnect to the cRIO via laptop or PC (through the DS-side router is fine) and download a new application.
Without build/deploy/"run at startup", the cRIO will always lose its code during a power cycle (hence the DS display of "no code").
I'm guessing that this is your issue. You might want to check out the LabVIEW reference docs here -
http://www.usfirst.org/community/frc....aspx?id=10934
Russ