It sounds like you probably have the software installed you need. You can verify by checking for these items:
LV 2017 (32-bit)
LV Real-Time Module
cRIO drivers
LV FPGA Module (optional depending on the application)
Will you be able to see the lvproj on the cRIO? No. You're running the cRIO in one of two ways: interactively or startup executable. If you don't need to connect it to a PC to start it up, you're using a startup executable. That will be a compiled executable and not the source code. If you're running it interactively, that means you're hitting the run arrow on your PC and sending the code that way. I'm guessing the latter. In either event, you'll need access to the application on the PC it was previously built on. Without that, you'll unfortunately be starting from scratch.
If you connected your PC directly to the cRIO, you'll want a direct connect cable. Through a hub/router/switch you can use a standard network cable. It's worth noting the cRIO can be on a different network. We won't know what that network is or if it's static/dynamic IP settings. If you're plugging into a router and not able to see it, you're likely working with a static IP setting that clashes with your current network settings.
Is the cRIO operational in its current state? If so, you'll want to hunt down the old source on one of the PCs. That'll be the easiest path forward.
