Подключение по pptp

Настраиваю подключение к серверу, аутенификация по PAP
#cat /etc/ppp/peers/st
name st
+pap
-chap
noauth
defaultroute

вызываю

pptp x.x.x.x call st

tail -20 /var/log/messages
Dec 4 15:22:53 HOME pppd[7392]: pppd 2.4.4 started by root, uid 0
Dec 4 15:22:53 HOME pppd[7392]: Using interface ppp1
Dec 4 15:22:53 HOME pppd[7392]: Connect: ppp1 <--> /dev/pts/15
Dec 4 15:22:55 HOME pppd[7392]: LCP terminated by peer (peer refused to authenticate)
Dec 4 15:22:55 HOME pptp[7391]: anon log[pptp_read_some:pptp_ctrl.c:543]: read returned zero, peer has closed
Dec 4 15:22:55 HOME pptp[7391]: anon log[callmgr_main:pptp_callmgr.c:255]: Closing connection (shutdown)
Dec 4 15:22:55 HOME pptp[7391]: anon log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 12 'Call-Clear-Request'
Dec 4 15:22:55 HOME pptp[7391]: anon log[pptp_read_some:pptp_ctrl.c:543]: read returned zero, peer has closed
Dec 4 15:22:55 HOME pptp[7391]: anon log[call_callback:pptp_callmgr.c:78]: Closing connection (call state)

Тот же конфиг использую для подключения к другому серверу с chap и различия в этих конфигах соответственно
-pap
+chap

Подскажите в чем ошибка?