EXPLANATION This message should occur only on a down-level computer. Any action to correct the problem should be performed ...

EXPLANATION    This message should occur only on a down-level computer. Any action to correct the problem should be performed on that computer.  The device name is invalid because it does not represent a physical device or because the device hardware is faulty.    ACTION    Check the spelling of the device name, and then retype the command.    If the problem persists, contact your network administrator.  Your administrator should use diagnostics to check that the device hardware is properly installed and working.    For more assistance, contact your hardware dealer.