LAN 拨号，PPPOE会话总是重建，见日志。

zhx200808

刷了固件后，启用lan拨号，总是掉线，设备日志现实PPPOE会话在不停重建
Jan  1 00:12:57 (none) daemon.debug syslog: ATCPOLL: No Data
) @. O! \+ r  m  v0 ~8 z) p% X) tJan  1 00:13:02 (none) daemon.debug syslog: ATCPOLL: No Data
Jan  1 00:13:07 (none) daemon.debug syslog: ATCPOLL: No Data
$ l2 ~$ l9 Y7 pJan  1 00:13:12 (none) daemon.debug syslog: ATCPOLL: No Data
# d: E. J) z4 S& f0 ^% PJan  1 00:13:17 (none) daemon.debug syslog: ATCPOLL: No Data
: D' _9 o& z; L0 Q% GJan  1 00:13:21 (none) daemon.crit syslog: Clear IP addresses.  PPP connection DOWN.
Jan  1 00:13:22 (none) daemon.crit syslog: Clear IP addresses.  Connection DOWN.
Jan  1 00:13:23 (none) daemon.debug syslog: ATCPOLL: No Data
Jan  1 00:13:26 (none) daemon.notice syslog: PPP: Start to connect ...
( C% p- L: q5 E3 n! i) K' @Jan  1 00:13:26 (none) daemon.crit syslog: PPP server detected.
Jan  1 00:13:26 (none) daemon.crit syslog: PPP session established.
Jan  1 00:13:26 (none) daemon.crit syslog: PPP LCP UP.
  m& D0 @& @% _$ K* nJan  1 00:13:27 (none) daemon.crit syslog: Received valid IP address from server.  Connection UP.
Jan  1 00:13:30 (none) daemon.debug syslog: ATCPOLL: No Data
2 P: y, t- B6 O, r) F, _" R* d! u& hJan  1 00:13:32 (none) daemon.debug syslog: ATCPOLL: No Data
Jan  1 00:13:37 (none) daemon.debug syslog: ATCPOLL: No Data
8 _3 \5 M* i$ P  `Jan  1 00:13:42 (none) daemon.debug syslog: ATCPOLL: No Data
: k" w* L8 n, A- d2 ZJan  1 00:13:47 (none) daemon.debug syslog: ATCPOLL: No Data
1 ?( u; `8 p+ l$ g, m; s大神给诊断下
这个ATCPOLL是个啥玩意儿