C7000v2 – Nighthawk AC1900 WiFi Cable Modem Router Frequent disconnection issues

Question

My isp is comcast and they say my modem is registered and it's nothing on their end but i keep frequently disconnecting and rennecting to the internet I've tried factory reseting and rebooting my modem mulitple times please help.DescriptionCountLast OccurrenceTargetSource[admin login] from source 192.168.0.111Mon Feb 24 21:36:29 20200.0.0.0:0192.168.0.11:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:568Mon Feb 24 21:35:47 20200.0.0.0:00.0.0.0:0[Internet connected] IP address: 73.144.255.1971Mon Feb 24 21:25:59 20200.0.0.0:00.0.0.0:0[ login failure] from source 192.168.0.113Mon Feb 24 21:25:51 20200.0.0.0:0192.168.0.11:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:561Mon Feb 24 21:25:51 20200.0.0.0:00.0.0.0:0[Time synchronized with ToD server]1Mon Feb 24 21:25:45 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:568Thu Jan 01 00:02:04 19700.0.0.0:00.0.0.0:0[Initialized, firmware version: V1.03.01]1Thu Jan 01 00:00:36 19700.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:561Thu Jan 01 00:00:36 19700.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.10] to MAC address 00:18:4d:ff:ff:071Thu Jan 01 00:00:36 19700.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:564Thu Jan 01 00:01:43 19700.0.0.0:00.0.0.0:0[admin login] from source 192.168.0.111Thu Jan 01 00:01:03 19700.0.0.0:0192.168.0.11:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:561Thu Jan 01 00:00:59 19700.0.0.0:00.0.0.0:0[ login failure] from source 192.168.0.111Thu Jan 01 00:00:50 19700.0.0.0:0192.168.0.11:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:561Thu Jan 01 00:00:48 19700.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.10] to MAC address 00:18:4d:ff:ff:071Thu Jan 01 00:00:40 19700.0.0.0:00.0.0.0:0[Initialized, firmware version: V1.03.01]1Thu Jan 01 00:00:37 19700.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:562Thu Jan 01 00:00:37 19700.0.0.0:00.0.0.0:0[Time synchronized with ToD server]1Mon Feb 24 21:17:10 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:564Mon Feb 24 21:17:05 20200.0.0.0:00.0.0.0:0[Time synchronized with ToD server]1Mon Feb 24 21:16:24 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:561Thu Jan 01 00:02:06 19700.0.0.0:00.0.0.0:0[admin login] from source 192.168.0.111Thu Jan 01 00:02:03 19700.0.0.0:0192.168.0.11:0[ login failure] from source 192.168.0.111Thu Jan 01 00:01:59 19700.0.0.0:0192.168.0.11:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:567Thu Jan 01 00:01:55 19700.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.10] to MAC address 00:18:4d:ff:ff:071Thu Jan 01 00:00:40 19700.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:561Thu Jan 01 00:00:38 19700.0.0.0:00.0.0.0:0[Initialized, firmware version: V1.03.01]1Thu Jan 01 00:00:38 19700.0.0.0:00.0.0.0:0[Internet disconnected]1Mon Feb 24 21:13:46 20200.0.0.0:00.0.0.0:0

JEbarb · Answer

DescriptionCountLast OccurrenceTargetSource[admin login] from source 192.168.0.111Thu Feb 27 21:32:21 20200.0.0.0:0192.168.0.11:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:5638Thu Feb 27 21:32:11 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.13] to MAC address b4:ae:2b:fa:c9:ed1Thu Feb 27 18:35:18 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:5683Thu Feb 27 18:33:19 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.10] to MAC address 00:18:4d:ff:ff:071Thu Feb 27 13:21:49 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.13] to MAC address b4:ae:2b:fa:c9:ed1Thu Feb 27 06:35:10 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:56133Thu Feb 27 06:09:17 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.13] to MAC address b4:ae:2b:fa:c9:ed1Thu Feb 27 03:04:35 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:56230Thu Feb 27 03:02:26 20200.0.0.0:00.0.0.0:0[DoS attack: Ping Of Death] from 192.0.131.80, port 02Wed Feb 26 19:20:37 20205.29.134.171:0192.0.131.80:0[DoS attack: Teardrop or derivative] from 192.0.131.80, port 01Wed Feb 26 19:20:30 20205.29.134.171:0192.0.131.80:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:565Wed Feb 26 19:17:37 20200.0.0.0:00.0.0.0:0[DoS attack: Ping Of Death] from 192.0.131.80, port 06Wed Feb 26 18:52:44 20205.29.134.171:0192.0.131.80:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:565Wed Feb 26 18:52:35 20200.0.0.0:00.0.0.0:0[DoS attack: Ping Of Death] from 192.0.131.80, port 01Wed Feb 26 18:40:54 20205.29.134.171:0192.0.131.80:0[DoS attack: Teardrop or derivative] from 192.0.131.80, port 01Wed Feb 26 18:32:49 20205.29.134.171:0192.0.131.80:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:561Wed Feb 26 18:20:43 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.14] to MAC address 84:a1:34:61:7f:631Wed Feb 26 18:20:03 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:5670Wed Feb 26 18:15:16 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.13] to MAC address b4:ae:2b:fa:c9:ed1Wed Feb 26 15:04:32 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:56107Wed Feb 26 15:03:25 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.13] to MAC address b4:ae:2b:fa:c9:ed1Wed Feb 26 12:02:53 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:5613Wed Feb 26 12:02:10 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.13] to MAC address b4:ae:2b:fa:c9:ed1Wed Feb 26 11:47:52 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:56289Wed Feb 26 11:46:52 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.13] to MAC address b4:ae:2b:fa:c9:ed1Tue Feb 25 23:47:42 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:5663Tue Feb 25 23:47:18 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.13] to MAC address b4:ae:2b:fa:c9:ed1Tue Feb 25 18:47:46 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:56359Tue Feb 25 18:46:43 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.13] to MAC address b4:ae:2b:fa:c9:ed1Tue Feb 25 06:47:35 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:5677Tue Feb 25 06:47:23 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.12] to MAC address 7c:f3:1b:eb:82:a91Tue Feb 25 00:47:05 20200.0.0.0:00.0.0.0:0[admin login] from source 192.168.0.111Tue Feb 25 00:46:37 20200.0.0.0:0192.168.0.11:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:5679Tue Feb 25 00:46:17 20200.0.0.0:00.0.0.0:0[admin login] from source 192.168.0.111Mon Feb 24 21:36:29 20200.0.0.0:0192.168.0.11:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:568Mon Feb 24 21:35:47 20200.0.0.0:00.0.0.0:0[Internet connected] IP address: 73.144.255.1971Mon Feb 24 21:25:59 20200.0.0.0:00.0.0.0:0[ login failure] from source 192.168.0.113Mon Feb 24 21:25:51 20200.0.0.0:0192.168.0.11:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:561Mon Feb 24 21:25:51 20200.0.0.0:00.0.0.0:0[Time synchronized with ToD server]1Mon Feb 24 21:25:45 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:568Thu Jan 01 00:02:04 19700.0.0.0:00.0.0.0:0[Initialized, firmware version: V1.03.01]1Thu Jan 01 00:00:36 19700.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:561Thu Jan 01 00:00:36 19700.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.10] to MAC address 00:18:4d:ff:ff:071Thu Jan 01 00:00:36 19700.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:564Thu Jan 01 00:01:43 19700.0.0.0:00.0.0.0:0[admin login] from source 192.168.0.111Thu Jan 01 00:01:03 19700.0.0.0:0192.168.0.11:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:561Thu Jan 01 00:00:59 19700.0.0.0:00.0.0.0:0[ login failure] from source 192.168.0.111Thu Jan 01 00:00:50 19700.0.0.0:0192.168.0.11:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:561Thu Jan 01 00:00:48 19700.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.10] to MAC address 00:18:4d:ff:ff:071Thu Jan 01 00:00:40 19700.0.0.0:00.0.0.0:0[Initialized, firmware version: V1.03.01]1Thu Jan 01 00:00:37 19700.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:562Thu Jan 01 00:00:37 19700.0.0.0:00.0.0.0:0[Time synchronized with ToD server]1Mon Feb 24 21:17:10 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:564Mon Feb 24 21:17:05 20200.0.0.0:00.0.0.0:0[Time synchronized with ToD server]1Mon Feb 24 21:16:24 20200.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:561Thu Jan 01 00:02:06 19700.0.0.0:00.0.0.0:0[admin login] from source 192.168.0.111Thu Jan 01 00:02:03 19700.0.0.0:0192.168.0.11:0[ login failure] from source 192.168.0.111Thu Jan 01 00:01:59 19700.0.0.0:0192.168.0.11:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:567Thu Jan 01 00:01:55 19700.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.10] to MAC address 00:18:4d:ff:ff:071Thu Jan 01 00:00:40 19700.0.0.0:00.0.0.0:0[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:561Thu Jan 01 00:00:38 19700.0.0.0:00.0.0.0:0[Initialized, firmware version: V1.03.01]1Thu Jan 01 00:00:38 19700.0.0.0:00.0.0.0:0[Internet disconnected]1Mon Feb 24 21:13:46 20200.0.0.0:00.0.0.0:0

JEbarb · Answer

here are so more logs&nbsp;

FURRYe38 · Answer

Have the ISP check the signal and line quality UP to the modem.&nbsp;Be sure there are not coax cable line splitters in the between the modem and ISP service box.&nbsp;Be sure your using good quality RG6 coax cable up to the modem.&nbsp;Any Wifi Neighbors near by? If so, how many?

FURRYe38 · Answer

Still not alot of info:https://kb.netgear.com/24009/How-do-I-use-auto-configuration-to-set-up-an-IPv6-Internet-connection-on-my-Nighthawk-routerMaybe a forum moderator and shed some light...vkdelta&nbsp;

vkdelta · Answer

JEbarb&nbsp;Please post DOCSIS Event Logs&nbsp;Please post Cable Connection power values

Description	Count	Last Occurrence	Target	Source
[admin login] from source 192.168.0.11	1	Mon Feb 24 21:36:29 2020	0.0.0.0:0	192.168.0.11:0
[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:56	8	Mon Feb 24 21:35:47 2020	0.0.0.0:0	0.0.0.0:0
[Internet connected] IP address: 73.144.255.197	1	Mon Feb 24 21:25:59 2020	0.0.0.0:0	0.0.0.0:0
[ login failure] from source 192.168.0.11	3	Mon Feb 24 21:25:51 2020	0.0.0.0:0	192.168.0.11:0
[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:56	1	Mon Feb 24 21:25:51 2020	0.0.0.0:0	0.0.0.0:0
[Time synchronized with ToD server]	1	Mon Feb 24 21:25:45 2020	0.0.0.0:0	0.0.0.0:0
[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:56	8	Thu Jan 01 00:02:04 1970	0.0.0.0:0	0.0.0.0:0
[Initialized, firmware version: V1.03.01]	1	Thu Jan 01 00:00:36 1970	0.0.0.0:0	0.0.0.0:0
[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:56	1	Thu Jan 01 00:00:36 1970	0.0.0.0:0	0.0.0.0:0
[DHCP IP: 192.168.0.10] to MAC address 00:18:4d:ff:ff:07	1	Thu Jan 01 00:00:36 1970	0.0.0.0:0	0.0.0.0:0
[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:56	4	Thu Jan 01 00:01:43 1970	0.0.0.0:0	0.0.0.0:0
[admin login] from source 192.168.0.11	1	Thu Jan 01 00:01:03 1970	0.0.0.0:0	192.168.0.11:0
[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:56	1	Thu Jan 01 00:00:59 1970	0.0.0.0:0	0.0.0.0:0
[ login failure] from source 192.168.0.11	1	Thu Jan 01 00:00:50 1970	0.0.0.0:0	192.168.0.11:0
[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:56	1	Thu Jan 01 00:00:48 1970	0.0.0.0:0	0.0.0.0:0
[DHCP IP: 192.168.0.10] to MAC address 00:18:4d:ff:ff:07	1	Thu Jan 01 00:00:40 1970	0.0.0.0:0	0.0.0.0:0
[Initialized, firmware version: V1.03.01]	1	Thu Jan 01 00:00:37 1970	0.0.0.0:0	0.0.0.0:0
[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:56	2	Thu Jan 01 00:00:37 1970	0.0.0.0:0	0.0.0.0:0
[Time synchronized with ToD server]	1	Mon Feb 24 21:17:10 2020	0.0.0.0:0	0.0.0.0:0
[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:56	4	Mon Feb 24 21:17:05 2020	0.0.0.0:0	0.0.0.0:0
[Time synchronized with ToD server]	1	Mon Feb 24 21:16:24 2020	0.0.0.0:0	0.0.0.0:0
[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:56	1	Thu Jan 01 00:02:06 1970	0.0.0.0:0	0.0.0.0:0
[admin login] from source 192.168.0.11	1	Thu Jan 01 00:02:03 1970	0.0.0.0:0	192.168.0.11:0
[ login failure] from source 192.168.0.11	1	Thu Jan 01 00:01:59 1970	0.0.0.0:0	192.168.0.11:0
[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:56	7	Thu Jan 01 00:01:55 1970	0.0.0.0:0	0.0.0.0:0
[DHCP IP: 192.168.0.10] to MAC address 00:18:4d:ff:ff:07	1	Thu Jan 01 00:00:40 1970	0.0.0.0:0	0.0.0.0:0
[DHCP IP: 192.168.0.11] to MAC address bc:ee:7b:23:9d:56	1	Thu Jan 01 00:00:38 1970	0.0.0.0:0	0.0.0.0:0
[Initialized, firmware version: V1.03.01]	1	Thu Jan 01 00:00:38 1970	0.0.0.0:0	0.0.0.0:0
[Internet disconnected]	1	Mon Feb 24 21:13:46 2020	0.0.0.0:0	0.0.0.0:0

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C7000v2 – Nighthawk AC1900 WiFi Cable Modem Router Frequent disconnection issues