Hi, > Please i need your help for this error message i get when i want to use radtest utility. > #radtest jerry cool 127.0.0.1:1812 0 testing123 which is mapped in /etc/hosts to some other addresses. you need to add 192.168.1.30 to your clients.conf - as 192.168.1.30 is the address you are appearing to the server as. alan