Hi. You can see my network configuration in the screenshot attached to this post. The first AirPort Express creates a network; a second AirPort Express and an AirPort Extreme extend this network. However, even if apparently there are no problems with the second AirPort Express, it doesn't extend the network. The LED is green; the device was configured correctly; the software is updated; the AirPort is connected to the network, but it just doesn't extend it. Obviously I have already tried hard resetting and factory resettings it more and more times with no luck. Can you help me please?