公司总断网，一天能掉5、6次，以下是路由器日志，麻烦大神帮我看下。

Question

14 2014-04-16 21:28:05 wan1 LCP down
15 2014-04-16 21:28:10 system wan1 down
16 2014-04-16 21:28:38 wan1 PPPoE Send PADI
17 2014-04-16 21:28:38 wan1 PPPoE Wait for PADO
18 2014-04-16 21:28:38 wan1 PPPoE Wait for PADO ok
19 2014-04-16 21:28:38 wan1 PPPoE Recv PADO
20 2014-04-16 21:28:38 wan1 PPPoE Send PADR
21 2014-04-16 21:28:38 wan1 PPPoE Wait for PADS
22 2014-04-16 21:28:38 wan1 PPPoE Recv PADS
23 2014-04-16 21:28:41 wan1 Get ip success
24 2014-04-16 21:28:51 system wan1 up
25 2014-04-16 21:39:20 wan1 LCP down
26 2014-04-16 21:39:24 system wan1 down
27 2014-04-16 21:39:53 wan1 PPPoE Send PADI
28 2014-04-16 21:39:53 wan1 PPPoE Wait for PADO
29 2014-04-16 21:39:53 wan1 PPPoE Wait for PADO ok
30 2014-04-16 21:39:53 wan1 PPPoE Recv PADO
31 2014-04-16 21:39:53 wan1 PPPoE Send PADR
32 2014-04-16 21:39:53 wan1 PPPoE Wait for PADS
33 2014-04-16 21:39:53 wan1 PPPoE Recv PADS
34 2014-04-16 21:39:56 wan1 Get ip success
35 2014-04-16 21:40:05 system wan1 up
36 2014-04-16 22:02:12 wan1 LCP down
37 2014-04-16 22:02:20 system wan1 down
38 2014-04-16 22:02:45 wan1 PPPoE Send PADI
39 2014-04-16 22:02:45 wan1 PPPoE Wait for PADO
40 2014-04-16 22:02:45 wan1 PPPoE Wait for PADO ok
41 2014-04-16 22:02:45 wan1 PPPoE Recv PADO
42 2014-04-16 22:02:45 wan1 PPPoE Send PADR
43 2014-04-16 22:02:45 wan1 PPPoE Wait for PADS
44 2014-04-16 22:02:45 wan1 PPPoE Recv PADS
45 2014-04-16 22:02:48 wan1 Get ip success
46 2014-04-16 22:02:51 system wan1 up
47 2014-04-16 22:26:44 wan1 LCP down
48 2014-04-16 22:26:45 system wan1 down

Answer 1

把路由器的wan口进线拔掉用笔记本拨号确定外线联通状况，外线联通状况良好则更换路由器，

Answer 2

LCP down,是路由器联网的时候握手失败了，可能是网络问题，也可能是路由器问题，先路由器恢复出厂设置，重新设置下，不行的话只能找网络供应商了。

Answer 3

检查主路由 WAN1的网线是否有故障
或请求网络提供商检查他们的网络