When your Android device is used as a kiosk and has to access internet for the browsing content, it is very likely that because of occasional internet disconnection, the kiosk user may come across standard Webpage not available / Page Cannot be Displayed error with no option to either go back to the kiosk home screen or navigate back to previous page. With standard error page, you also have to manually refresh the page till the connection is available.

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Go to Home Page - Go to SureFox Home Screen
To enable SureFox Error Page, follow below mentioned procedure:
SureFox Settings by tapping on Home Screen five times within three seconds and using default password - 0000
SureFox Settings screen, tap on Browser Preferences
Browser Preferences screen, tap on Advance Settings
4. On Advance Settings screen, tap on Enable SureFox Error Page to enable it
5. Tap on Done to complete
To know more, visit https://www.42gears.com/surefox/