I had s similar problem a few days ago, with my inability to connect to my project but after I reimaged my cRIO it started working again. After fixing up a few programing errors I made sure I built my project and deployed it, and i hade connection to both my communications and Robot code, but my robot would not run. I reset my computer and re deployed everything to see if there were any random clerical errors but when i re-deployed i didn’t get any connections what se ever. I made sure all my ip addresses were correct and my d-link was on the right settings. I'm able to ping the to the d-link, but I’m not able to connect to the communications or robot codes. And the NI phone line isn’t going to be open again till Monday. Any words of wisdom or help for a fellow programmer?