The process of downloading the Dell Inspiron 14 3420 Notebook Conexant D400 Modem Diagnostics Utility A01 driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the Dell Inspiron 14 3420 Notebook Conexant D400 Modem Diagnostics Utility A01 driver from the primary server - this is the manufacturer’s CONEXANT official website). If the download still fails to run, check whether your anti-virus software is not blocking the connection to the manufacturer server of the Dell Inspiron 14 3420 Notebook Conexant D400 Modem Diagnostics Utility A01 diver.