703N 3G总是断网不稳定，传了系统日志大家分析分析。

shmilykaixin

Mar  9 15:40:08 OpenWrt daemon.info pppd[3833]: No response to 5 echo-requests
Mar  9 15:40:08 OpenWrt daemon.notice pppd[3833]: Serial link appears to be disconnected.
Mar  9 15:40:08 OpenWrt daemon.info pppd[3833]: Connect time 6.9 minutes.
Mar  9 15:40:08 OpenWrt daemon.info pppd[3833]: Sent 3876 bytes, received 3648 bytes.
Mar  9 15:40:09 OpenWrt user.info firewall: removing wan (3g-wan) from zone wan
Mar  9 15:40:14 OpenWrt daemon.notice pppd[3833]: Connection terminated.

请不要胡乱输入以及粘贴、复制等方式灌水

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ondh

不同的3G网卡耗电量也不同吧，如果路由器的USB供电电流不够大的话，很容易出现3G掉线的吧

www0935

3G接入的话，LZ你还是换个5V 2A的电源

shmilykaixin

www0935 发表于 2012-3-9 18:46
3G接入的话，LZ你还是换个5V 2A的电源

谢谢回复。我专门搞了5V，2V的问题照样呀！

weereew

参考我的贴，关于3g断线问题根本解决

jameslord

....
尼玛烧3G卡的人都很蛋疼：（大家同意木？

shmilykaixin

jameslord 发表于 2012-3-10 04:57
....
尼玛烧3G卡的人都很蛋疼：（大家同意木？

切...

知道什么叫南神卡，北神，20封顶么！？

shmilykaixin

jameslord 发表于 2012-3-10 04:57
....
尼玛烧3G卡的人都很蛋疼：（大家同意木？

知道什么叫南神卡，北神，20封 顶么！？

shmilykaixin

今天继续703N ，5V,2A电源。用3G，不开WIFI还好，正常使用4个小时不断网。一开WIFI，3G就断网。我又复制了日志，高手分析下呢。谢谢了
Mar 10 08:32:53 OpenWrt local2.info chat[4870]: CONNECT
Mar 10 08:32:53 OpenWrt local2.info chat[4870]:  -- got it
Mar 10 08:32:53 OpenWrt local2.info chat[4870]: send ( ^M)
Mar 10 08:32:53 OpenWrt daemon.info pppd[4586]: Serial connection established.
Mar 10 08:32:53 OpenWrt daemon.info pppd[4586]: Using interface 3g-wan
Mar 10 08:32:53 OpenWrt daemon.notice pppd[4586]: Connect: 3g-wan <--> /dev/ttyACM0
Mar 10 08:32:54 OpenWrt daemon.info pppd[4586]: Remote message: Login OK
Mar 10 08:32:54 OpenWrt daemon.notice pppd[4586]: PAP authentication succeeded
Mar 10 08:32:57 OpenWrt daemon.notice pppd[4586]: local  IP address 10.52.140.181
Mar 10 08:32:57 OpenWrt daemon.notice pppd[4586]: remote IP address 192.200.1.21
Mar 10 08:32:57 OpenWrt daemon.notice pppd[4586]: primary   DNS address 112.4.12.200
Mar 10 08:32:57 OpenWrt daemon.notice pppd[4586]: secondary DNS address 112.4.1.36
Mar 10 08:32:58 OpenWrt user.notice ifup: Enabling Router Solicitations on wan (3g-wan)
Mar 10 08:32:58 OpenWrt user.info firewall: adding wan (3g-wan) to zone wan
Mar 10 12:17:22 OpenWrt kern.info kernel: [13969.870000] eth0: link down
Mar 10 12:17:22 OpenWrt kern.info kernel: [13969.870000] br-lan: port 1(eth0) entering forwarding state
Mar 10 12:20:43 OpenWrt kern.info kernel: [14171.470000] eth0: link up (100Mbps/Full duplex)
Mar 10 12:20:43 OpenWrt kern.info kernel: [14171.470000] br-lan: port 1(eth0) entering forwarding state
Mar 10 12:20:43 OpenWrt kern.info kernel: [14171.470000] br-lan: port 1(eth0) entering forwarding state
Mar 10 12:20:47 OpenWrt daemon.info dnsmasq-dhcp[3135]: DHCPREQUEST(br-lan) 192.168.1.100 xx.xx.xx.xx.xx.xx
Mar 10 12:20:47 OpenWrt daemon.info dnsmasq-dhcp[3135]: DHCPACK(br-lan) 192.168.1.100 xx.xx.xx.xx.xx.xx PC-20120209IDWX
Mar 10 12:24:33 OpenWrt kern.info kernel: [14401.000000] device wlan0 entered promiscuous mode
Mar 10 12:24:33 OpenWrt kern.info kernel: [14401.000000] br-lan: port 2(wlan0) entering forwarding state
Mar 10 12:24:33 OpenWrt kern.info kernel: [14401.010000] br-lan: port 2(wlan0) entering forwarding state
Mar 10 12:24:37 OpenWrt kern.info kernel: [14404.790000] device wlan0 left promiscuous mode
Mar 10 12:24:37 OpenWrt kern.info kernel: [14404.790000] br-lan: port 2(wlan0) entering forwarding state
Mar 10 12:24:37 OpenWrt kern.info kernel: [14404.930000] device wlan0 entered promiscuous mode
Mar 10 12:24:37 OpenWrt kern.info kernel: [14404.940000] br-lan: port 2(wlan0) entering forwarding state
Mar 10 12:24:37 OpenWrt kern.info kernel: [14404.940000] br-lan: port 2(wlan0) entering forwarding state
Mar 10 12:24:40 OpenWrt daemon.info hostapd: wlan0: STA xx.xx.xx.xx.xx.xx IEEE 802.11: authenticated
Mar 10 12:24:40 OpenWrt daemon.info hostapd: wlan0: STA xx.xx.xx.xx.xx.xx IEEE 802.11: associated (aid 1)
Mar 10 12:24:40 OpenWrt daemon.info hostapd: wlan0: STA xx.xx.xx.xx.xx.xx WPA: pairwise key handshake completed (RSN)
Mar 10 12:24:40 OpenWrt daemon.info dnsmasq-dhcp[3135]: DHCPDISCOVER(br-lan) 192.168.0.100 xx.xx.xx.xx.xx.xx
Mar 10 12:24:40 OpenWrt daemon.info dnsmasq-dhcp[3135]: DHCPOFFER(br-lan) 192.168.1.136 xx.xx.xx.xx.xx.xx
Mar 10 12:24:40 OpenWrt daemon.info dnsmasq-dhcp[3135]: DHCPREQUEST(br-lan) 192.168.1.136 xx.xx.xx.xx.xx.xx
Mar 10 12:24:40 OpenWrt daemon.info dnsmasq-dhcp[3135]: DHCPACK(br-lan) 192.168.1.136 xx.xx.xx.xx.xx.xx PC-20120209IDWX
Mar 10 12:25:02 OpenWrt daemon.info dnsmasq-dhcp[3135]: DHCPRELEASE(br-lan) 192.168.1.136 xx.xx.xx.xx.xx.xx