Check that the display on the DMX Processor shows ‘Outputs Active’. If it does not, then see if it is in the process of getting the show data or connecting, or crashed. if it has crashed, restart it by disconnecting the mains power, waiting a few moments, and reconnecting it.
Check the network cabling. The Link light will be lit on the DMX Processor if the correct connection has been made.
Check the network settings. The DMX Processor and console both need to be on the same subnet.
Check the software. The DMX Processor and console both need to be running the same version of the software; see DMX Processor Software Update.