Why is 'NO COM' displayed on the QIAxcel Instrument Panel although the power is on and all connections are made to the QIAxcel instrument and computer?

Check the QIAxcel computer “COM port” in the Windows Control Panel and then select the correct COM port number in the BioCalculator Instrument Control panel. Be sure to turn the Instrument on first prior to launching the BioCalculator software. If there is still “NO COM”, please contact QIAGEN Technical Services.