When a network is protected with a WPS and WPA2, the only way to connect is using a WPS pin, found in the Administration area of the router, or with the password found on the Wireless Security section in the Administration area. If you don't know these, connection will be impossible to be made. If you have previously connected to the network with another password and it has been changed, access the wireless preferences and remove the preferred networks. This will allow you to input a new password to connect.
