Hello All, I have two routers: 1st: Linksys WRTSL54GS running Tomato Firmware v1.28.8752 ND USB vpn3.6 acting as the main router connected to the internet via DSL modem on the WAN port. IP Address 192.168.10.1. DHCP enabled. Router in is Access Point + WDS mode. 2nd: ASUS WL520GU running Tomato Firmware v1.27.8747 ND USB vpn3.6 acting as a extension router to extend the wireless network range. IP Address 192.168.10.2. DHCP Disabled (get all IP addresses from the main router's DHCP). The WAN side is disabled and the IP address for router 1 is entered as the Gateway. Router in is Access Point + WDS mode. Problem: The MAC address of both routers are entered in each other's configuration so they can Link in WDS mode. The SSID on both routers is kept different to know how many people are connected internally and externally. This setup works fine in the WEP security mode with a 64-bit key used. Since WEP is old and unsecure I wanted to move to WPA/WPA2 with any encryption. However whenever I choose anything else than WEP, router number 2 (or maybe 1) fails to bind to the main router in wireless mode and hence I can only connect to router 1 (via wired network) and cannot reach the interface of router 2 (via wireless). I do keep the same network key on both the routers in WPA mode ( i dont generate random key and enter my own). Alternatively if I connect directly to router 2 SSID then I can only see its interface and cannot browse internet, since it is not binding with router 1. I have tried many combinations of WPA/WPA 2 (Personal) and AES/TKIP , however nothing seems to work. The routers only bind and make a WDS when both are in WEP mode with the same key entered. Is it some limitation of this setup or am I doing something wrong. Any guidance would be appreciated.