RT-BE88U每天偶尔断线重连，求大佬帮忙看看

已注销_dKEnC9

固件版本3.0.0.6.102_39112

玩两手机的时候断网一分钟之内又重新连接上了，

互联网租约过期时间重新开始从24计时

以下是断网这段时间的系统一般日志

Feb 13 10:10:43 kernel: eth1 (Int switch port: 7) (Logical Port: 7) (phyId: 18) Link DOWN.
Feb 13 10:10:45 WAN(0) Connection: Fail to connect with some issues.
Feb 13 10:10:48 kernel: eth1 (Int switch port: 7) (Logical Port: 7) (phyId: 18) Link Up at 2500 mbps full duplex AN: On
Feb 13 10:10:48 WAN(0) Connection: WAN(0) link up.
Feb 13 10:10:48 rc_service: wanduck 2284:notify_rc restart_wan_if 0
Feb 13 10:10:49 pppd[3972]: Connection terminated.
Feb 13 10:10:49 odhcp6c[4701]: Failed to send DHCPV6 message to ff02::1:2 (Network is unreachable)
Feb 13 10:10:49 pppd[3972]: Failed to disconnect PPPoE socket: 114 Operation already in progress
Feb 13 10:10:49 dhcp client: deconfig
Feb 13 10:10:49 dnsmasq[5149]: interface br0 failed to join DHCPv6 multicast group: Address already in use
Feb 13 10:10:49 pppoe-relay[3967]: recv (receivePacket): Network is down
Feb 13 10:10:49 pppoe-relay[3967]: recv (receivePacket): Network is down
Feb 13 10:10:49 kernel: netdev path : wan0 -> eth1
Feb 13 10:10:49 kernel: BCMVLAN : eth1 mode was set to RG
Feb 13 10:10:49 kernel: VLAN Rule Table : eth1, Rx, nbrOfTags 1, default DROP  
Feb 13 10:10:49 kernel: No entries found
Feb 13 10:10:49 kernel: --------------------------------------------------------------------------------
Feb 13 10:10:49 wan: mac clone: [wan0_hwaddr] == [c8:7f:54:06:36:4c]
Feb 13 10:10:49 kernel: wan0 MAC address set to C8:7F:54:06:36:4C
Feb 13 10:10:49 dhcp client: deconfig
Feb 13 10:10:49 pppd[14565]: pppd 2.4.7 started by admin, uid 0
Feb 13 10:10:49 pppoe-relay[14561]: PADO packet from a0:08:6f:3f:b8:e6 on interface wan0 does not have Relay-Session-Id tag
Feb 13 10:10:49 pppd[14565]: Connected to a0:08:6f:3f:b8:e6 via interface wan0
Feb 13 10:10:49 pppoe-relay[14561]: PADS packet from a0:08:6f:3f:b8:e6 on interface wan0 does not have Relay-Session-Id tag
Feb 13 10:10:49 pppd[14565]: Connect: ppp0 <--> wan0
Feb 13 10:10:52 dhcp client: bound 192.168.1.7/255.255.255.0 via 192.168.1.1 for 86400 seconds.
Feb 13 10:10:52 pppd[14565]: CHAP authentication succeeded
Feb 13 10:10:52 pppd[14565]: peer from calling number A0:08:6F:3F:B8:E6 authorized
Feb 13 10:10:52 pppd[14565]: local  LL address fe80::2434:443a:85e3:7256
Feb 13 10:10:52 pppd[14565]: remote LL address fe80::a208:6fff:fe3f:b8e6
Feb 13 10:10:52 rc_service: ipv6-up 14819:notify_rc start_rdisc6
Feb 13 10:10:52 pppd[14565]: local  IP address 100.65.55.99
Feb 13 10:10:52 pppd[14565]: remote IP address 100.65.32.1
Feb 13 10:10:52 pppd[14565]: primary   DNS address 112.100.101.101
Feb 13 10:10:52 pppd[14565]: secondary DNS address 112.100.100.100
Feb 13 10:10:53 ip-up[14822]: hnd_get_phy_status: Temporarily Router cannot get the PHY() status...
Feb 13 10:10:53 wan: finish adding multi routes
Feb 13 10:10:53 rc_service: ipv6-up 14819:notify_rc start_dhcp6c
Feb 13 10:10:54 WAN(0) Connection: WAN was restored.
Feb 13 10:10:55 BWDPI: force to flush flowcache entries
Feb 13 10:10:55 kernel: udb_core lock_num = 9
Feb 13 10:10:55 BWDPI: rollback fc
Feb 13 10:10:56 kernel: tdts_udb: unknown parameter 'qos_wan' ignored
Feb 13 10:10:56 kernel: tdts_udb: unknown parameter 'qos_lan' ignored
Feb 13 10:10:56 kernel: SHN Release Version: 2.0.8 2025-01-17-FIXDCD-1024
Feb 13 10:10:56 kernel: UDB Core Version: 0.2.20
Feb 13 10:10:56 kernel: Registered DNS Req parsing
Feb 13 10:10:56 kernel: sizeof forward pkt param = 280
Feb 13 10:10:56 ntp: start NTP update
Feb 13 10:10:56 BWDPI: fun bitmap = 43f
Feb 13 10:10:57 rc_service: ip-up 14822:notify_rc stop_samba
Feb 13 10:10:57 Samba Server: smb daemon is stopped
Feb 13 10:10:57 dhcp6 client: bound prefix 240e:30b:3c0f:4100::/56
Feb 13 10:10:57 rc_service: dhcp6c 15514:notify_rc stop_dnsmasq
Feb 13 10:10:58 rc_service: ip-up 14822:notify_rc start_samba
Feb 13 10:10:58 rc_service: dhcp6c 15514:notify_rc start_dnsmasq 255
Feb 13 10:10:59 wan_up: Restart DDNS
Feb 13 10:10:59 rc_service: dhcp6c 15514:notify_rc restart_samba
Feb 13 10:10:59 Samba Server: smb daemon is stopped
Feb 13 10:11:02 HTTPD: [LOGIN][http][Web] successed (192.168.50.2)

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Master

从log基本能判断：触发断线重连的根因是 WAN 口物理链路（eth1，端口7，phyId 18）发生了短暂 Link Down，随后路由器按机制重启 WAN 并重新拨号 PPPoE 成功。

关键时间线（按因果）
10:10:43 kernel: eth1 ... Link DOWN.
→ 物理层掉线（网线/端口/对端设备/协商层面的问题）
10:10:45 WAN(0) Connection: Fail to connect...
→ 因为链路已断，WAN 连接失败
10:10:48 Link Up at 2500 mbps full duplex AN: On + WAN link up
→ 物理层恢复，速率协商到 2.5G，全双工，自动协商开启
10:10:49 pppd: Connection terminated.
→ PPPoE 会话因物理掉线被迫中断
10:10:49~10:10:54 重新发起 PPPoE（PADO/PADS、CHAP success、拿到 IP/DNS）
→ WAN was restored. 恢复完成

可能的原因（按 log 指向）
1. 网线/水晶头/墙内布线接触不良或质量不足
2.5G 对线材和端接更敏感，轻微接触问题就会“闪断”。

2. 2.5G 自动协商（AN）不稳定或与光猫/上级设备兼容性问题
log 明确显示 2500 mbps ... AN: On，偶发 Link flap（Up/Down）很常见于协商抖动、EEE 省电、对端口重训等。

3. 光猫/上级设备端口自身在抖动/重启/省电切换
如果对端以太网口瞬断，路由这边一定先看到 Link DOWN。