Airport Express, WAN port in client mode On an Airport Express (2012 version, 802.11n), has anyone tried the following configuration? Is the WAN port active in client mode? Do you have any suggestions on this or similar configurations? I am trying to use Airplay to stream music to two Klipsch G-17 speakers. As I have discovered and also documented by Apple on their web page http://support.apple.com/kb/HT4587 in the section "Connecting to an existing Wi-Fi network...