[gm342]

Windriver runs additional software on your computer while you are debugging on the cRIO: the registry and the target. You should see icons appear in the bottom right of your screen near your clock.

Sometimes between debug sessions or if you reboot the cRIO, the connection gets interrupted and this additional software should be restarted if it gets quirky.

In windriver you can right clight on that VxWorkd6x_10.8.48.2 and Disconnect/Connect to help fix it (this takes a few seconds).

This is because your cRIO is running a RPC service (remote procedure call) so that your computer can control it.