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For example, if you need to use the WS319 in different network environments always, you can 
configure the relevant parameters in these network environments and back up them carefully. 
If you want to change the network environment later, you can import the configuration file 
directly to restore the default configuration without any configuration again. 
Restoring Default Settings 
Using the Configuration Tool 
If the WS319 parameter settings were configured incorrectly, log in to the web management 
page to reload the default configuration file and restore the WS319 to its default settings. 
Perform this operation with caution. After the WS319 is restored to its default settings, all 
custom data and settings will be lost, and the password will be restored to admin. 
1. Log in to the web management page. 
2. Choose Maintain tab. 
3. In the navigation tree, choose Device Management. 
4. Select Factory Restore configuration page. 
5. Click Restore. 
6. In the displayed dialog box, click OK.