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Asus RT-AC66U WAN Connection down and up

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dhruvcasper

New Around Here
Hi,

i am facing issue with my router. ISP is saying its router issue. i have Asus RT-AC66U running on stock Firmware Version:3.0.0.4.380_7378 and even tried the last merlin firmware 380.66_4 but same issue. below are the logs. Reading online seems its common issue with asus routers but could not find solution.
ISP internet connection is automatic IP. i have done hard reset and change of firmware's. issue did not exist 6 months back but its common in day at any random time.

Jun 1 18:12:57 miniupnpd[1339]: upnp_event_recv: recv(): Connection reset by peer
Jun 1 18:40:11 miniupnpd[1339]: upnp_event_recv: recv(): Connection reset by peer
Jun 1 18:53:06 miniupnpd[1339]: upnp_event_recv: recv(): Connection reset by peer
Jun 1 19:16:15 rc_service: httpd 285:notify_rc restart_wan_if 0
Jun 1 19:16:16 kernel: Attempt to kill tasklet from interrupt
Jun 1 19:16:18 rc_service: udhcpc 4724:notify_rc start_firewall
Jun 1 19:16:18 miniupnpd[1339]: shutting down MiniUPnPd
Jun 1 19:16:18 start_nat_rules: apply the nat_rules(/tmp/nat_rules_eth0_eth0)!
Jun 1 19:16:19 miniupnpd[4760]: version 1.9 started
Jun 1 19:16:19 wan: finish adding multi routes
Jun 1 19:16:19 miniupnpd[4760]: HTTP listening on port 56020
Jun 1 19:16:19 miniupnpd[4760]: Listening for NAT-PMP/PCP traffic on port 5351
Jun 1 19:16:19 rc_service: udhcpc 4724:notify_rc stop_upnp
Jun 1 19:16:19 rc_service: udhcpc 4724:notify_rc start_upnp
Jun 1 19:16:19 rc_service: waitting "stop_upnp" via udhcpc ...
Jun 1 19:16:19 miniupnpd[4760]: shutting down MiniUPnPd
Jun 1 19:16:20 miniupnpd[4767]: version 1.9 started
Jun 1 15:16:20 ntp: start NTP update
Jun 1 19:16:20 dhcp client: bound 192.168.70.2 via 192.168.70.1 during 259200 seconds.
Jun 1 19:16:20 miniupnpd[4767]: HTTP listening on port 46785
Jun 1 19:16:20 miniupnpd[4767]: Listening for NAT-PMP/PCP traffic on port 5351
Jun 1 19:16:22 miniupnpd[4767]: upnp_event_process_notify: connect(192.168.1.92:2869): Connection reset by peer
Jun 1 19:36:17 miniupnpd[4767]: upnp_event_recv: recv(): Connection reset by peer
Jun 1 19:53:05 miniupnpd[4767]: upnp_event_recv: recv(): Connection reset by peer
Jun 1 21:48:03 miniupnpd[4767]: upnp_event_recv: recv(): Connection reset by peer
Jun 1 21:58:08 miniupnpd[4767]: upnp_event_recv: recv(): Connection reset by peer
Jun 1 23:00:52 disk_monitor: Got SIGALRM...
Jun 2 03:51:00 kernel: nf_ct_ras: decoding error: out of range
Jun 2 06:55:51 miniupnpd[4767]: upnp_event_recv: recv(): Connection reset by peer
Jun 2 03:16:17 ntp: start NTP update
Jun 2 03:48:12 WAN Connection: Ethernet link down.
Jun 2 03:48:12 stop_nat_rules: apply the redirect_rules!
Jun 2 07:48:46 miniupnpd[4767]: upnp_event_recv: recv(): Connection reset by peer
Jun 2 03:48:57 WAN Connection: Ethernet link up.
Jun 2 03:48:57 rc_service: wanduck 274:notify_rc restart_wan_if 0
Jun 2 07:48:58 kernel: Attempt to kill tasklet from interrupt
Jun 2 07:49:00 rc_service: udhcpc 14078:notify_rc start_firewall
Jun 2 07:49:00 miniupnpd[4767]: shutting down MiniUPnPd
Jun 2 07:49:00 start_nat_rules: apply the nat_rules(/tmp/nat_rules_eth0_eth0)!
Jun 2 07:49:00 miniupnpd[14104]: version 1.9 started
Jun 2 07:49:00 miniupnpd[14104]: HTTP listening on port 59092
Jun 2 07:49:00 miniupnpd[14104]: Listening for NAT-PMP/PCP traffic on port 5351
Jun 2 07:49:00 wan: finish adding multi routes
Jun 2 07:49:00 rc_service: udhcpc 14078:notify_rc stop_upnp
Jun 2 07:49:00 rc_service: udhcpc 14078:notify_rc start_upnp
Jun 2 07:49:00 rc_service: waitting "stop_upnp" via udhcpc ...
Jun 2 07:49:00 miniupnpd[14104]: shutting down MiniUPnPd
Jun 2 07:49:01 dhcp client: bound 192.168.70.2 via 192.168.70.1 during 259200 seconds.
Jun 2 07:49:02 miniupnpd[14121]: version 1.9 started
Jun 2 07:49:02 miniupnpd[14121]: HTTP listening on port 54238
Jun 2 07:49:02 miniupnpd[14121]: Listening for NAT-PMP/PCP traffic on port 5351
Jun 2 03:49:04 WAN Connection: WAN was restored.
Jun 2 03:49:38 ntp: start NTP update
Jun 2 07:49:38 miniupnpd[14121]: upnp_event_recv: recv(): Connection reset by peer
Jun 2 06:27:37 WAN Connection: Ethernet link down.
Jun 2 06:27:37 stop_nat_rules: apply the redirect_rules!
Jun 2 06:28:21 WAN Connection: Ethernet link up.
Jun 2 06:28:21 rc_service: wanduck 274:notify_rc restart_wan_if 0
Jun 2 10:28:22 kernel: Attempt to kill tasklet from interrupt
Jun 2 10:28:24 rc_service: udhcpc 16236:notify_rc start_firewall
Jun 2 10:28:24 miniupnpd[14121]: shutting down MiniUPnPd
Jun 2 10:28:24 start_nat_rules: apply the nat_rules(/tmp/nat_rules_eth0_eth0)!
Jun 2 10:28:24 wan: finish adding multi routes
Jun 2 10:28:24 miniupnpd[16276]: version 1.9 started
Jun 2 10:28:24 miniupnpd[16276]: HTTP listening on port 47789
Jun 2 10:28:24 miniupnpd[16276]: Listening for NAT-PMP/PCP traffic on port 5351
Jun 2 10:28:24 rc_service: udhcpc 16236:notify_rc stop_upnp
Jun 2 10:28:24 rc_service: udhcpc 16236:notify_rc start_upnp
Jun 2 10:28:24 rc_service: waitting "stop_upnp" via udhcpc ...
Jun 2 10:28:25 miniupnpd[16276]: shutting down MiniUPnPd
Jun 2 10:28:25 miniupnpd[16279]: version 1.9 started
Jun 2 10:28:25 dhcp client: bound 192.168.70.2 via 192.168.70.1 during 259200 seconds.
Jun 2 10:28:26 miniupnpd[16279]: HTTP listening on port 34339
Jun 2 10:28:26 miniupnpd[16279]: Listening for NAT-PMP/PCP traffic on port 5351
Jun 2 06:28:29 WAN Connection: WAN was restored.
 
Jun 2 03:48:12 WAN Connection: Ethernet link down.
Jun 2 03:48:12 stop_nat_rules: apply the redirect_rules!
Jun 2 07:48:46 miniupnpd[4767]: upnp_event_recv: recv(): Connection reset by peer
Jun 2 03:48:57 WAN Connection: Ethernet link up.

This indicates that the Ethernet link between the modem and the router went down for 30 seconds. This usually indicates that your modem crashed and rebooted itself. The problem is not your router.
 
Seems issue is from ISP side(hopefully). i had word with them and they sent technician to come and replace some reflector and modem from fiber cable. everything is working fine 9 hours. just one more quick thing. keeping an eye on log below error is still cropping up.

Jun 2 22:23:06 miniupnpd[20167]: upnp_event_recv: recv(): Connection reset by peer
 
Seems issue is from ISP side(hopefully). i had word with them and they sent technician to come and replace some reflector and modem from fiber cable. everything is working fine 9 hours. just one more quick thing. keeping an eye on log below error is still cropping up.

Jun 2 22:23:06 miniupnpd[20167]: upnp_event_recv: recv(): Connection reset by peer

Ignore these, they are just notifications.
 

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