Why is myWPA2 activated on my modem but my WiFi is still open?

I have changed my WiFi name put a WPA2 and stopped broadcasting my SSID. Now my Modom broadcast it's name and is an open WiFi hotspot. If I go either on the WiFi app or directly on the router through a browser I see that my modem still is supposed to request a password for WiFi. I am really lost here as to what I'm supposed to do...

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