ZyXEL Communications P-2812HNU-51c User Manual page 295

Chapter 24 Tools
After you see the Firmware Upload in Progress screen, wait two minutes
before logging into the P-2812HNU-51c again.
Figure 151 Firmware Upload In Progress
The P-2812HNU-51c automatically restarts in this time causing a temporary
network disconnect. In some operating systems, you may see the following icon
on your desktop.
Figure 152 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, the following screen will appear. Click Tools to
go back to the Firmware screen.
Figure 153 Error Message
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P-2812HNU-51c User's Guide