nickfury 发表于 2016-9-8 09:12:32

RT-AC87U会突然掉线，重拨会提示网线未连接

RT-AC87U使用过程中会突然掉线，重拨的时候，提示“网线未连接”

然后重新插拔了一下RT-AC87U WAN端的网线，但仍旧会提示“网线未连接”

截了一段系统日志，如下：

Sep8 06:33:37 pppd: PAP authentication failed
Sep8 06:33:43 pppd: Connection terminated.
Sep8 06:33:43 pppd: Modem hangup
Sep8 06:33:53 pppd: Connected to 74:9d:8f:05:c7:71 via interface eth0
Sep8 06:33:53 pppd: Connect: ppp0 <--> eth0
Sep8 06:33:56 pppd: PAP authentication failed
Sep8 06:34:02 pppd: Connection terminated.
Sep8 06:34:03 pppd: Modem hangup
Sep8 06:34:13 pppd: Connected to 74:9d:8f:05:c7:71 via interface eth0
Sep8 06:34:13 pppd: Connect: ppp0 <--> eth0
Sep8 06:34:16 pppd: PAP authentication failed
Sep8 06:34:22 pppd: Connection terminated.
Sep8 06:34:23 pppd: Modem hangup
Sep8 06:34:33 pppd: Connected to 74:9d:8f:05:c7:71 via interface eth0
Sep8 06:34:33 pppd: Connect: ppp0 <--> eth0
Sep8 06:34:37 pppd: PAP authentication failed
Sep8 06:34:43 pppd: Connection terminated.
Sep8 06:34:43 pppd: Modem hangup
Sep8 06:34:53 pppd: Connected to 74:9d:8f:05:c7:71 via interface eth0
Sep8 06:34:53 pppd: Connect: ppp0 <--> eth0
Sep8 06:34:56 pppd: PAP authentication succeeded
Sep8 06:34:56 pppd: peer from calling number 74:9D:8F:05:C7:71 authorized
Sep8 06:34:56 pppd: localIP address 10.0.19.191
Sep8 06:34:56 pppd: remote IP address 10.0.0.1
Sep8 06:34:56 pppd: primary   DNS address 124.89.1.129
Sep8 06:34:56 pppd: secondary DNS address 221.11.1.68
Sep8 06:38:38 pppd: Timeout waiting for PADO packets

请问是什么原因呢？是RT-AC87U本身硬件的问题，还是固件问题？

514422325 发表于 2016-9-8 09:15:18

固件版本多少

涵哥 发表于 2016-9-8 10:25:30

硬件没啥问题，看你的log都是在拨号，然后失败
Sep8 06:34:37 pppd: PAP authentication failed
Sep8 06:34:43 pppd: Connection terminated.
Sep8 06:34:43 pppd: Modem hangup
就最后一次是成功的，而且还是私有的WAN IP。

建议检查一下物理连接看看

Master 发表于 2016-9-8 10:32:04

参照涵哥说法，同时建议做一次硬件复位。

Sprite 发表于 2016-9-8 13:46:48

PAP authentication failed看起来是认证失败了,网线可能也有点松,建议换一根

devilai 发表于 2016-10-9 21:50:21

Enable Internet Detect设置为否，问题解决！
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