ZyXEL Communications NBG-419N User Manual page 173

Chapter 27 Firmware Upgrade
Note: Do not turn off the NBG-419N while firmware upload is in progress!
After you see the Firmware Upload In Process screen, wait two minutes before logging into the
NBG-419N again.
The NBG-419N automatically restarts in this time causing a temporary network disconnect. In some
operating systems, you may see the following icon on your desktop.
Figure 127 Network Temporarily Disconnected
After two minutes, log in again and check your new firmware version in the Status screen.
If the upload was not successful, an error message appears. Click Return to go back to the
Firmware screen.
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NBG-419N User's Guide