Quote:
Originally Posted by Mark McLeod
If the Communications light isn't green, but the robot diagnostic ping is green, the your IP address is correct, but the FRC communication code isn't running on the cRIO.
One thing that this can be due to is a user code crash, so testing with default code can be a useful diagnostic step.
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Another thing that can cause this is having the "NO APP" switch turned on. It's an easy thing to check on an 8-slot cRIO.