ADSL拨号问题把我折腾惨了！

sudo pppoeconf后，输入plog显示如下：
Jun 6 22:58:08 johan-desktop pppd[6742]: PAP authentication failed
Jun 6 22:58:14 johan-desktop pppd[6742]: Connection terminated.
Jun 6 22:58:14 johan-desktop pppd[6742]: Modem hangup
Jun 6 22:58:16 johan-desktop pppd[6678]: PPP session is 5681
Jun 6 22:58:16 johan-desktop pppd[6678]: Using interface ppp0
Jun 6 22:58:16 johan-desktop pppd[6678]: Connect: ppp0 <--> eth0
Jun 6 22:58:16 johan-desktop pppd[6678]: Remote message: pin is null
Jun 6 22:58:16 johan-desktop pppd[6678]: PAP authentication failed
Jun 6 22:58:22 johan-desktop pppd[6678]: Connection terminated.
Jun 6 22:58:22 johan-desktop pppd[6678]: Modem hangup

进入/etc/ppp/pap-secrets看帐号和密码都没错啊。在Windows下拨号后用密码查看器检测了一下密码似乎是连接后就被更改，但用这个改了的密码配置Ubuntu下的adsl显示Pass_Error。

自行编译rp-pppoe，配置，结果连接的时候出现类似如下的信息：
................TIMED OUT
/usr/sbin/adsl-start: line 191: 3092 Terminated $CONNECT "$@" >/de
v/null 2>&1