Hello all: I got a problem again. I setup the freeradius+mysql system,it looks like work well,but today,i got a problem like this. I have two users User1 and User2(different Cleartext-Password). After turn on the radius server(in debug mode) and NAS,the first time i use User1 to login, it connected,great. and then,i broken the connection and try again as User2,it also connected,but at the debug information it said that the use expand:%{User-Name} -> is still User1. It is weird for me. i restart the radius server, connect again with User2 information, still report as User1, but if i reboot the AP and connect as User2 (radius server does not need to restart here),it works, radius said know here is User2, but after that i use User1 to connect,samething happens, server said it still User2 not User1. It seems like the NAS's problem, i try two kind of NAS(compex wps 543 and Netgear WG103),the same situation? any one could help me here? Thanks in advanced. Joey