If a configuration fails or denies management access to the router, you can use the RESET CONFIG button to restore the router to the factory default configuration or a rescue configuration. For example, if someone inadvertently commits a configuration that denies management access to a router, you can delete the invalid configuration and replace it with a rescue configuration by pressing the RESET CONFIG button. The button is recessed to prevent it from being pressed accidentally.
The rescue configuration is a previously committed, valid configuration. You must have previously set the rescue configuration through the J-Web interface or the CLI.
To press the RESET CONFIG button, insert a small probe (such as a straightened paper clip) into the pinhole on the front panel (see Figure 8 and Figure 9):