最近 1 个月，发现宽带频繁掉线， 坐标苏州
现象：掉线短则 10 几分钟，长则 6-8 个小时
网络拓扑
尝试（以下均无效果）
日志
Mon Sep 22 06:45:54 2025 daemon.warn omcproxy: mrib_receive_mrt: ignoring invalid IGMP-message of type 16 from 169.254.223.74 on 10
Mon Sep 22 06:52:24 2025 daemon.warn omcproxy: mrib_receive_mrt: ignoring invalid IGMP-message of type 16 from 169.254.223.74 on 10
Mon Sep 22 06:52:30 2025 daemon.notice netifd: Network device 'eth1' link is down
Mon Sep 22 06:52:30 2025 daemon.notice netifd: Interface 'wan' has link connectivity loss
Mon Sep 22 06:52:30 2025 daemon.notice netifd: Interface 'wan6' has link connectivity loss
Mon Sep 22 06:52:30 2025 kern.info kernel: [117807.542498] igc 0000:02:01.0 eth1: NIC Link is Down
[119783.120391] br-lan: entered allmulticast mode
[124399.949160] igc 0000:02:01.0 eth1: NIC Link is Down
[124401.347951] pppoe-wan: left allmulticast mode
[124401.348399] br-lan: left allmulticast mode
[124404.529274] igc 0000:02:01.0 eth1: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[124410.978811] igc 0000:02:01.0 eth1: NIC Link is Down
[124454.337847] igc 0000:02:01.0 eth1: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[124480.257565] pppoe-wan: renamed from ppp0
[124484.306029] br-lan: entered allmulticast mode
[124484.306457] pppoe-wan: entered allmulticast mode
[129626.005598] traps: bandwidthd[27527] trap divide error ip:404ca9 sp:7fff9c720290 error:0 in bandwidthd[4ca9,402000+6000]
1970-01-01 10:28:42 [Warning] RunProcess process[ctsgw_proxy] Event[0xad17] dwUsedTicks[403]
1970-01-01 10:28:45 [Warning] RunProcess process[ctsgw_proxy] Event[0xad17] dwUsedTicks[301]
1970-01-01 08:00:23 [Notice] System start!
1970-01-01 08:00:23 [Warning] Ioctl failed!
1970-01-01 08:00:27 [Warning] Ioctl failed!SIOCGIFFLAGS
1970-01-01 08:00:27 [Warning] RunProcess process[sweth_mgr] Event[0x1103] dwUsedTicks[376]
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