D-Link DFL-260E User Manual page 56

2.1.9. Working with Configurations
The web browser will automatically try to connect back to the Web Interface after 10 seconds. If the connection
succeeds, this is interpreted by NetDefendOS as confirmation that remote management is still working. The new
configuration is then automatically committed.
Note: Changes must be committed
The configuration must be committed before changes are saved. All changes to a
configuration can be ignored simply by not committing a changed configuration.
Chapter 2. Management and Maintenance
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