embedded

Hello I have pineapple from last summer 2014 Also have adsl wlan that have dhcp + nat 192.168.1.xxx and wlan security psk2 mixed in channel 6 How can i make the pineapple range extender so that my pc:s get ip from adsl and not from pineapple and also have the same wlan ssid ? By using the web gui was only be able to make the 2.nd wlan to connect as client to adsl wlan and the ip's came from the pineapple. Also if used same wlan ssid and channel it didn't work at all.