ZyXEL Communications Corporation EMG2881-T20A Benutzerhandbuch

Chapter 11 Maintenance

EMG2881-T20A User’s Guide

The following table describes the labels in this screen.

After you see the Firmware Upload In Process screen, wait two minutes before logging into the 
EMG2881-T20A again.

The EMG2881-T20A automatically restarts in this time causing a temporary network disconnect. In some 
operating systems, you may see the following icon on your desktop.

Figure 63   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. 

Backup configuration allows you to back up (save) the EMG2881-T20A’s current configuration to a file 
on your computer. Once your EMG2881-T20A is configured and functioning properly, it is highly 
recommended that you back up your configuration file before making configuration changes. The 
backup configuration file will be useful in case you need to return to your previous settings. 

Restore configuration allows you to upload a new or previously saved configuration file from your 
computer to your EMG2881-T20A.

Click Maintenance > Backup/Restore. Information related to factory defaults, backup configuration, 
and restoring configuration appears as shown next.

Table 45   Maintenance > Firmware Upgrade

Firmware Upgrade

File Path 

Type in the location of the file you want to upload in this field or click Choose File to find it.

Choose File

Click Choose File to find the .bin file you want to upload. Remember that you must decompress 
compressed (.zip) files before you can upload them. 

Upload 

Click Upload to begin the upload process. This process may take up to two minutes.