SCIConnectErr. The 2 DSPs on an Audio Card are unable to communicate with each other reliably).- Old DAE (v1.04 and earlier could report this error falsely).- Corrupted DigiSetup file (throw it away, restart the Mac, launch PT, run Hardware Setup).- Hardware is in a corrupted state (power cycle the hardware).- Audio Card failure.- Word Clock connected to Audio Interface Slave Clock input.