ZyXEL Communications NWA-3160 - V3.70 Manual page 283

Chapter 23 Maintenance
The NWA automatically restarts in this time causing a temporary network
disconnect. In some operating systems, you may see the following icon on your
desktop.
Figure 172 Network Temporarily Disconnected
After two minutes, log in again and check your new firmware version in the
System Status screen.
If the upload was not successful, the following screen will appear. Click Return to
go back to the F/W Upload screen.
Figure 173 Firmware Upload Error
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NWA-3160 Series User's Guide