Hi, I am trying to extend the range of my Linksys WRT600N router that is connected to my cable modem. The router is in a basement corner. By the time the signal reaches the farthest room - 2nd floor bedroom on the opposite side of the house, my iPad or my MBP cannot get a strong signal. So I thought the Airport Express would help me do that. But while trying to set it up using the Airport software, I tried various options as posted by folks on this forum and others, but have failed. Most of the posts were with a Linksys WRT54G. Wondering if anyone had luck with a WRT600N and extending it with a Airport Express. My understanding is that if I extend the network, the Airport Express becomes a client of the network and does not forward ip's etc - hence I was trying to join a WDS network. To do that I did the following - 1) Hardwired the Airport Express (Cat5) to the LAN port of the Linksys router. 2) Airport detected it - went in through manual settings, "Joined a WDS network" 3) Modified the Wireless tab to reflect the Linksys SSID 4) Tried both WEP and WPA-Personal - results were the same in both cases 5) Entered the MAC address of the Linksys router (2.4Ghz Channel) into the WDS settings. 6) Airport Express gave the green light. 7) Other laptop,desktop etc. could see the AE through wireless setup and could connect, but could not get an IP address forwarded and so all internet connectivity failed. Any thoughts/ideas on how I could get this to work? Do I have to flash the Linksys router with a DD-WRT Firmware? Thanks for any advice!