[Mark McLeod]

The flashing sounds normal for missing code.
When you download code use a default project as-is, "build" and choose "Run as startup" to see if that keeps your Robot code light on.
When you get that lit successfully, you'll still need to Enable the Driver Station before the Jaguar lights go solid.

As far as status lights go, make sure the Digital Sidecar power LEDs all bright green, and the cRIO status lights are all correct.