V4路由器，偶尔断网，求助！！！！

问题描述：

[Sat Dec 06 17:06:57 2008]:[DHCPD] unicasting packet to client ciaddr
[Sat Dec 06 17:07:00 2008]:[DHCPD] received INFORM
[Sat Dec 06 17:07:00 2008]:[DHCPD] unicasting packet to client ciaddr
[Sat Dec 06 17:23:32 2008]:[DHCPD] received INFORM
[Sat Dec 06 17:23:32 2008]:[DHCPD] unicasting packet to client ciaddr
[Sat Dec 06 17:26:58 2008]:[DHCPD] received INFORM
[Sat Dec 06 17:26:58 2008]:[DHCPD] unicasting packet to client ciaddr
[Sat Dec 06 17:27:01 2008]:[DHCPD] received INFORM
[Sat Dec 06 17:27:01 2008]:[DHCPD] unicasting packet to client ciaddr
[Sat Dec 06 17:43:32 2008]:[DHCPD] received INFORM
[Sat Dec 06 17:43:32 2008]:[DHCPD] unicasting packet to client ciaddr
[Sat Dec 06 17:52:40 2008]:[POE] send PADT
[Sat Dec 06 17:54:51 2008]:[POE] start...
[Sat Dec 06 17:54:51 2008]:[POE] send PADI
[Sat Dec 06 17:55:00 2008]:[POE] start...
[Sat Dec 06 17:55:00 2008]:[POE] send PADI
[Sat Dec 06 17:55:29 2008]:[HTTP] login (192.168.18.3)
[Sat Dec 06 17:55:30 2008]:[POE] rcv PADO
[Sat Dec 06 17:55:30 2008]:[POE] Session_ID=11
[Sat Dec 06 17:55:30 2008]:[PPP] start lcp stage
[Sat Dec 06 17:55:31 2008]:[PPP] Got gateway IP 61.51.102.1
[Sat Dec 06 17:55:31 2008]:[PPP] Got local IP 61.51.57.184
[Sat Dec 06 17:55:31 2008]:[PPP] Got Primary DNS address 202.106.195.68
[Sat Dec 06 17:55:31 2008]:[PPP] Got Secondary DNS address 202.106.46.151
[Sat Dec 06 17:55:33 2008]:[NTP] System clock modified by ntpclient
[Sat Dec 06 17:55:33 2008]:[NTP] Sync with ntp1.ien.it
[Sat Dec 06 17:57:28 2008]:[HTTP] login (192.168.18.3)
帮忙看一下，大概是17点五十多分吧，掉了一下

问题解答：

应该是网线有问题，查看一下