[Greg McKaskle]

If your code downloads, then I don't really think there is a comms issue. You can also test this by right clicking on the cRIO target in the project window and choosing to connect. This is a subset of the download, and if it fails, look more closely at comms, otherwise, you know you can connect.

What I'd probably do to troubleshoot is to try opening and running one of the examples. Pick one that does a single sensor or controls a motor. Open the project, change the project cRIO IP using properties, and run the example.

If it this also fails, it may be worth reimaging your cRIO, then running the example. Once it works, try your project code again.

Greg McKaskle