If you are running Visara Firmware IL3501 with the I/O Concepts EMS product suite you must uprade the IL3507 release of Visara firmware. Description of bug If a READ command is received without first being selected, the IL3501 code presents "COMMAND RETRY" status without device end. When the data arrives from the device, the DEVICE END will not be presented to complete the "COMMAND RETRY". This causes a Selective reset on the device.