erro radius/pppoe

instalei o radius com ppoe conforme o tutorial do scorpion, e fui testar acontece o seguinte, a maquina que esta discando retorna que a senha esta incorreta e no meu servidor o /log/messages, me retorna isso. q eh o cliente que esta terminado a conecção

Dec 15 10:48:49 srv pppoe-server[1230]: Session 14 created for client 00:e0:7d:d4:7c:a8 (172.168.0.63) on eth1 using Service-Name ''
Dec 15 10:48:49 srv pppd[1230]: Plugin radius.so loaded.
Dec 15 10:48:49 srv pppd[1230]: RADIUS plugin initialized.
Dec 15 10:48:49 srv pppd[1230]: Plugin radattr.so loaded.
Dec 15 10:48:49 srv pppd[1230]: RADATTR plugin initialized.
Dec 15 10:48:49 srv pppd[1230]: pppd 2.4.2b3 started by root, uid 0
Dec 15 10:48:49 srv pppd[1230]: Using interface ppp0
Dec 15 10:48:49 srv pppd[1230]: Connect: ppp0 <--> /dev/pts/1
Dec 15 10:48:51 srv pppd[1230]: Connection terminated.
Dec 15 10:48:51 srv pppd[1230]: Exit.
Dec 15 10:48:51 srv pppoe-server[853]: Session 14 closed for client 00:e0:7d:d4:7c:a8 (172.16.0.63) on eth1
Dec 15 10:48:51 srv pppoe-server[853]: Sent PADT


ja no cliente ele me fala que o usuario ou a senha são invalidos no dominio.

Alguem tem ideia de onde eu possa ter errado?