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.
Be sure there are not coax cable line splitters in the between the modem and ISP service box.
Be sure your using good quality RG6 coax cable up to the modem.

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

Forum Discussion

C7000v2 – Nighthawk AC1900 WiFi Cable Modem Router Frequent disconnection issues

8 Replies

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