My VoiceLive Rack isn't receiving MIDI signals. What's wrong?
The most common reason for MIDI devices not communicating properly is that the devices aren't set to the same channel.
You can change MIDI and CC channels by pressing SETUP and moving to the MIDI tab with the Tab/Step buttons below the control wheel. Also if USB is connected and the USB CONTROL parameter in the Setup\System tab is set to ON, the rear panel MIDI input will not work.