Download and install the Model 372 Ethernet firmware update
To install the Model 372 Ethernet firmware update:
Download the firmware update file and extract it.
Download the firmware updater application and run.
Enter the IP address of your instrument.
Choose the extracted firmware update file when prompted.
At this point, the application should check to see if the firmware you are attempting to update to is newer than what is already installed on the Model 372. If it is, then the firmware should immediately begin uploading, and the progress of the firmware update operation should be displayed using the two progress bars in the application window.