I upgraded all of my 7 APs in my WDS System to Tomato 1.18 (nice piece of work!). Since that worked fine as expected i change encryption from WEP to WPA/AES. All APs have a rock solid connection to each other and i can access all of them by connecting with wire. But: WIFI connections are simply impossible. All clients see the ssid, they try to connect but while getting an ip, they loose connection and try again. I see this on 4 different notebooks with broadcom and with realtek chipsets. The drivers are the latest i could find. The system is windows xp sp2 with all patches. What can i do sice i like the new "security".