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Re: random internet disconnects - netgear c7000v2

Frequent Visitor

Re: random internet disconnects - netgear c7000v2

Did you have any luck with this? Any solution? I am having the same issue and I work from home, so this has become VERY disruptive, to say the least.

Expert

Re: random internet disconnects - netgear c7000v2

You haven't provided any details about your setup, equipment, symptoms, or what you did to troubleshoot.

See Xfinity Internet Connection Troubleshooting Tips. 

 


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Frequent Visitor

Re: random internet disconnects - netgear c7000v2

Hi, I was just looking for the conclusion to the original thread I found;

 

https://forums.xfinity.com/t5/Your-Home-Network/random-internet-disconnects-netgear-c7000v2/m-p/3262...

 

Doesn't appear to be one. Something about possible power problems;

 

"The upstream power too high /out of spec in the second screenshot. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, and latency problems. "

 

Just wanted to know if that was the case and what can be done about it. I'll have to dig into the netgear c7000v2 to get my specific details....

Expert

Re: random internet disconnects - netgear c7000v2

What do the modem's signal stats look like ? Try getting them here http://192.168.100.1 or here http://10.0.0.1

Please post the *Downstream Power Level*, the *Upstream Power Level*, and the *SNR* (Signal to Noise Ratio) numbers.

What is the exact make and model number of the modem ?




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Re: random internet disconnects - netgear c7000v2

I have a c7000v2 model.

 

Firmware Version

V1.03.01

 

Frequency start Value

This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect.
Starting Frequency
 
Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 651000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Security Enabled BPI+
IP Provisioning Mode Honor MDD honorMdd(4)
 
Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables
1 Locked QAM256 25 651000000 Hz 1.3 dBmV 39.8 dB 6153 1075
2 Locked QAM256 9 555000000 Hz 0.8 dBmV 39.8 dB 2931 778
3 Locked QAM256 10 561000000 Hz 0.6 dBmV 39.2 dB 2933 846
4 Locked QAM256 11 567000000 Hz 0.8 dBmV 39.8 dB 3021 669
5 Locked QAM256 12 573000000 Hz 0.9 dBmV 39.8 dB 3429 678
6 Locked QAM256 13 579000000 Hz 0.9 dBmV 39.7 dB 4395 789
7 Locked QAM256 14 585000000 Hz 1 dBmV 39.6 dB 5277 1013
8 Locked QAM256 15 591000000 Hz 1.1 dBmV 39.6 dB 5916 914
9 Locked QAM256 16 597000000 Hz 1.1 dBmV 39.6 dB 6651 882
10 Locked QAM256 17 603000000 Hz 1.2 dBmV 39.6 dB 7200 1043
11 Locked QAM256 18 609000000 Hz 1.1 dBmV 39.6 dB 7924 1175
12 Locked QAM256 19 615000000 Hz 1.2 dBmV 39.6 dB 7902 944
13 Locked QAM256 20 621000000 Hz 1.3 dBmV 39.7 dB 7991 1155
14 Locked QAM256 21 627000000 Hz 1.3 dBmV 39.8 dB 7250 1056
15 Locked QAM256 22 633000000 Hz 1.3 dBmV 39.8 dB 7456 1334
16 Locked QAM256 23 639000000 Hz 0.7 dBmV 39.3 dB 8963 1285
17 Locked QAM256 24 645000000 Hz 1.2 dBmV 40.3 dB 0 0
18 Locked QAM256 26 657000000 Hz 1.3 dBmV 40.4 dB 0 0
19 Locked QAM256 27 663000000 Hz 1.4 dBmV 40.3 dB 1 0
20 Locked QAM256 28 669000000 Hz 1.4 dBmV 40.3 dB 0 0
21 Locked QAM256 29 675000000 Hz 1.5 dBmV 39.9 dB 1 0
22 Locked QAM256 30 681000000 Hz 1.6 dBmV 40.3 dB 0 0
23 Locked QAM256 31 687000000 Hz 1.7 dBmV 40.3 dB 0 0
24 Locked QAM256 32 693000000 Hz 1.8 dBmV 40.4 dB 1 0
 
Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 2 5120 Ksym/sec 30100000 Hz 44.5 dBmV
2 Locked ATDMA 1 5120 Ksym/sec 36500000 Hz 45.3 dBmV
3 Locked ATDMA 3 5120 Ksym/sec 23700000 Hz 45.3 dBmV
4 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
5 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
6 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
7 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
8 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
 
Extended Upstream Transmit Power
Enable Extended Upstream Transmit Power
 
Current System Time:Sun Nov 03 10:26:28 2019
Expert

Re: random internet disconnects - netgear c7000v2

The stats are in spec. Please post the error / event log entities as well. Is this with a WiFi connection ?



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Frequent Visitor

Re: random internet disconnects - netgear c7000v2

So, the drop and reconnect happened again. Here are the stats I captured.

 

 

Frequency start ValueThis field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect.

Starting Frequency  
 

Startup Procedure

Procedure Status Comment
Acquire Downstream Channel 651000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Security Enabled BPI+
IP Provisioning Mode Honor MDD honorMdd(4)
 

Downstream Bonded Channels

Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables
1 Locked QAM256 25 651000000 Hz 0.5 dBmV 39.5 dB 6294 1075
2 Locked QAM256 9 555000000 Hz 0 dBmV 39.6 dB 2989 778
3 Locked QAM256 10 561000000 Hz 0.1 dBmV 38.9 dB 2975 846
4 Locked QAM256 11 567000000 Hz 0.3 dBmV 39.7 dB 3070 669
5 Locked QAM256 12 573000000 Hz 0.5 dBmV 39.7 dB 3523 678
6 Locked QAM256 13 579000000 Hz 0.5 dBmV 39.6 dB 4526 789
7 Locked QAM256 14 585000000 Hz 0.5 dBmV 39.4 dB 5405 1013
8 Locked QAM256 15 591000000 Hz 0.5 dBmV 39.4 dB 6052 914
9 Locked QAM256 16 597000000 Hz 0.4 dBmV 39.4 dB 6802 882
10 Locked QAM256 17 603000000 Hz 0.5 dBmV 39.3 dB 7355 1043
11 Locked QAM256 18 609000000 Hz 0.4 dBmV 39.3 dB 8115 1175
12 Locked QAM256 19 615000000 Hz 0.5 dBmV 39.3 dB 8110 944
13 Locked QAM256 20 621000000 Hz 0.6 dBmV 39.5 dB 8207 1155
14 Locked QAM256 21 627000000 Hz 0.6 dBmV 39.5 dB 7449 1056
15 Locked QAM256 22 633000000 Hz 0.6 dBmV 39.6 dB 7648 1334
16 Locked QAM256 23 639000000 Hz 0 dBmV 39 dB 9172 1285
17 Locked QAM256 24 645000000 Hz 0.5 dBmV 40.1 dB 0 0
18 Locked QAM256 26 657000000 Hz 0.5 dBmV 39.9 dB 0 0
19 Locked QAM256 27 663000000 Hz 0.6 dBmV 39.9 dB 1 0
20 Locked QAM256 28 669000000 Hz 0.6 dBmV 39.9 dB 0 0
21 Locked QAM256 29 675000000 Hz 0.6 dBmV 39.4 dB 1 0
22 Locked QAM256 30 681000000 Hz 0.7 dBmV 39.8 dB 0 0
23 Locked QAM256 31 687000000 Hz 0.8 dBmV 39.9 dB 0 0
24 Locked QAM256 32 693000000 Hz 0.9 dBmV 39.9 dB 1 0
 

Upstream Bonded Channels

Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 3 5120 Ksym/sec 23700000 Hz 42.8 dBmV
2 Locked ATDMA 1 5120 Ksym/sec 36500000 Hz 44.3 dBmV
3 Locked ATDMA 2 5120 Ksym/sec 30100000 Hz 42.8 dBmV
4 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
5 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
6 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
7 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
8 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
 

Extended Upstream Transmit PowerEnable Extended Upstream Transmit Power

 

Current System Time:Thu Nov 07 11:31:25 2019System Up Time:47 days 16:15:59

 

Expert

Re: random internet disconnects - netgear c7000v2

Well the stats are still good.. You didn't post the requested error log entries or answer the WiFi question ??



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Frequent Visitor

Re: random internet disconnects - netgear c7000v2

Not sure what you mean about the WiFi, but here are the logs and event logs;

 

Description Count Last Occurrence Target Source
[DoS attack: Ping Of Death] from 196.127.146.80, port 0 5 Thu Nov 07 13:06:35 2019 128.115.181.105:0 196.127.146.80:0
[admin login] from source 192.168.0.15 1 Thu Nov 07 13:06:34 2019 0.0.0.0:0 192.168.0.15:0
[DHCP IP: 192.168.0.22] to MAC address d8:31:34:67:63:74 1 Thu Nov 07 12:25:15 2019 0.0.0.0:0 0.0.0.0:0
[DoS attack: Ping Of Death] from 196.127.146.80, port 0 4 Thu Nov 07 11:58:57 2019 128.115.181.105:0 196.127.146.80:0
[DHCP IP: 192.168.0.18] to MAC address 00:04:a3:a5:ae:8f 1 Thu Nov 07 11:58:09 2019 0.0.0.0:0 0.0.0.0:0
[DHCP IP: 192.168.0.17] to MAC address 04:a1:51:8e:4a:85 1 Thu Nov 07 11:57:03 2019 0.0.0.0:0 0.0.0.0:0
[DoS attack: Ping Of Death] from 196.127.146.80, port 0 1 Thu Nov 07 11:32:38 2019 29.194.80.109:0 196.127.146.80:0
[DoS attack: Teardrop or derivative] from 196.127.146.80, port 0 4 Thu Nov 07 11:32:23 2019 128.115.181.105:0 196.127.146.80:0
[admin login] from source 192.168.0.15 1 Thu Nov 07 11:29:38 2019 0.0.0.0:0 192.168.0.15:0
[DoS attack: Teardrop or derivative] from 196.127.146.80, port 0 3 Thu Nov 07 11:18:50 2019 128.115.181.105:0 196.127.146.80:0
[DoS attack: Ping Of Death] from 196.127.146.80, port 0 3 Thu Nov 07 11:18:29 2019 128.115.181.105:0 196.127.146.80:0
[DoS attack: Illegal Fragments] from 196.127.146.80, port 0 2 Thu Nov 07 11:18:29 2019 128.115.181.105:0 196.127.146.80:0
[DoS attack: Ping Of Death] from 196.127.146.80, port 0 5 Thu Nov 07 11:18:29 2019 128.115.181.105:0 196.127.146.80:0
[DoS attack: Teardrop or derivative] from 196.127.146.80, port 0 4 Thu Nov 07 11:18:29 2019 128.115.181.105:0 196.127.146.80:0
[DoS attack: Illegal Fragments] from 196.127.146.80, port 0 1 Thu Nov 07 11:14:15 2019 128.115.181.105:0 196.127.146.80:0
[DoS attack: Ping Of Death] from 196.127.146.80, port 0 1 Thu Nov 07 11:14:15 2019 128.115.181.105:0 196.127.146.80:0
[DoS attack: Teardrop or derivative] from 196.127.146.80, port 0 1 Thu Nov 07 11:14:15 2019 128.115.181.105:0 196.127.146.80:0
[admin login] from source 192.168.0.15 1 Thu Nov 07 11:12:26 2019 0.0.0.0:0 192.168.0.15:0
[DoS attack: Teardrop or derivative] from 196.127.146.80, port 0 3 Thu Nov 07 11:12:16 2019 128.115.181.105:0 196.127.146.80:0
[Internet connected] IP address: 71.232.86.254 1 Thu Nov 07 11:12:03 2019 0.0.0.0:0 0.0.0.0:0
[Time synchronized with ToD server] 1 Thu Nov 07 11:11:53 2019 0.0.0.0:0 0.0.0.0:0
[Internet disconnected] 1 Thu Nov 07 11:10:56 2019 0.0.0.0:0 0.0.0.0:0
[DHCP IP: 192.168.0.11] to MAC address d0:e1:40:3a:97:80 1 Thu Nov 07 10:55:32 2019 0.0.0.0:0 0.0.0.0:0
[DHCP IP: 192.168.0.14] to MAC address 04:0c:ce:72:b7:ad 1 Thu Nov 07 10:41:49 2019 0.0.0.0:0 0.0.0.0:0
[DHCP IP: 192.168.0.36] to MAC address 5c:87:9c:2e:a0:77 1 Thu Nov 07 09:30:09 2019 0.0.0.0:0 0.0.0.0:0
[DHCP IP: 192.168.0.36] to MAC address 5c:87:9c:2e:a0:77 1 Thu Nov 07 09:30:08 2019 0.0.0.0:0 0.0.0.0:0
[DHCP IP: 192.168.0.15] to MAC address c0:d0:12:7b:60:33 1 Thu Nov 07 08:14:43 2019 0.0.0.0:0 0.0.0.0:0
[DoS attack: Ping Of Death] from 196.127.146.80, port 0 1 Thu Nov 07 07:25:21 2019 188.171.168.77:0 196.127.146.80:0
[DHCP IP: 192.168.0.12] to MAC address 6c:33:a9:72:44:6b 1 Thu Nov 07 07:22:53 2019 0.0.0.0:0 0.0.0.0:0
[DHCP IP: 192.168.0.31] to MAC address bc:fe:d9:2a:6c:34 1 Thu Nov 07 07:21:38 2019 0.0.0.0:0 0.0.0.0:0
[DHCP IP: 192.168.0.15] to MAC address c0:d0:12:7b:60:33 1 Thu Nov 07 07:01:06 2019 0.0.0.0:0 0.0.0.0:0
[DHCP IP: 192.168.0.26] to MAC address 70:de:e2:e7:6e:59 1 Thu Nov 07 06:32:02 2019 0.0.0.0:0 0.0.0.0:0

[DHCP IP: 192.168.0.32] to MAC address bc:30:7d:be:79:36

 

Time Priority Description
2019-11-7, 11:11:29 Notice (6) Honoring MDD; IP provisioning mode = IPv6
2019-11-7, 11:11:10 Critical (3)  No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.0;CM-VER=3.0;
2019-11-7, 11:10:55 Critical (3)  Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.1;CM-VER=3.0;
2019-11-7, 11:10:46 Warning (5)  Dynamic Range Window violation
2019-11-7, 11:10:43 Critical (3)  Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.1;CM-VER=3.0;
2019-11-7, 11:10:26 Warning (5)  Dynamic Range Window violation
2019-11-7, 11:10:23 Critical (3)  Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.1;CM-VER=3.0;
2019-11-7, 11:10:06 Warning (5)  Dynamic Range Window violation
2019-11-6, 17:53:46 Warning (5)  Unicast DSID PSN startup error
2019-11-6, 17:53:08 Notice (6)  Honoring MDD; IP provisioning mode = IPv6
2019-11-6, 17:52:57 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.0;CM-VER=3.0;
2019-11-6, 17:52:42 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.1;CM-VER=3.0;
2019-11-6, 17:52:33 Warning (5) Dynamic Range Window violation
2019-11-6, 17:52:30 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.1;CM-VER=3.0;
2019-11-6, 17:52:13 Warning (5) Dynamic Range Window violation
2019-11-6, 17:52:10 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.1;CM-VER=3.0;
2019-11-6, 10:49:56 Warning (5) Dynamic Range Window violation
2019-11-6, 06:31:10 Notice (6) Honoring MDD; IP provisioning mode = IPv6
2019-11-6, 06:31:03 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.0;CM-VER=3.0;
2019-11-6, 06:30:49 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.1;CM-VER=3.0;
2019-11-6, 06:30:40 Warning (5) Dynamic Range Window violation
2019-11-6, 06:30:36 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.1;CM-VER=3.0;
2019-11-6, 06:30:20 Warning (5) Dynamic Range Window violation
2019-11-6, 06:30:16 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.1;CM-VER=3.0;
2019-11-5, 20:51:56 Warning (5) Dynamic Range Window violation
2019-11-4, 11:59:58 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.1;CM-VER=3.0;
2019-11-4, 11:59:25 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.1;CM-VER=3.0;
2019-11-4, 11:59:09 Warning (5) Dynamic Range Window violation
2019-11-4, 11:19:22 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.1;CM-VER=3.0;
2019-11-4, 11:19:13 Warning (5) Dynamic Range Window violation
2019-11-4, 11:18:49 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.1;CM-VER=3.0;
2019-11-4, 10:47:16 Warning (5) Dynamic Range Window violation
2019-11-4, 10:45:58 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.1;CM-VER=3.0;
2019-11-3, 10:21:01 Warning (5) Dynamic Range Window violation
2019-11-3, 10:20:48 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.1;CM-VER=3.0;
2019-11-3, 10:20:20 Warning (5) Dynamic Range Window violation
2019-11-3, 10:20:16 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.1;CM-VER=3.0;
2019-11-3, 10:20:00 Warning (5) Dynamic Range Window violation
2019-11-2, 20:34:39 Notice (6) Honoring MDD; IP provisioning mode = IPv6
2019-11-2, 20:34:29 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.0;CM-VER=3.0;
Expert

Re: random internet disconnects - netgear c7000v2

O/k, do the "drops and reconnects" happen only with a WiF connection (if that's what you are using) or do they also happen with a computer that is hardwired directly to the gateway with an ethernet cable ?



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Frequent Visitor

Re: random internet disconnects - netgear c7000v2

This is WiFi only. There are no hard connections to the netgear.

Expert

Re: random internet disconnects - netgear c7000v2

"or do they also happen with a computer that is hardwired directly to the gateway with an ethernet cable ?"

 

This means for you to test it that way please....



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Frequent Visitor

Re: random internet disconnects - netgear c7000v2

What are you looking for exactly?

My primary and only intended connection with this equipement is through wifi.

This worked for several months without issue over wifi. 

I've seen other threads with the same reported issue and yet it seems like none of them ever have a resolution. So before I go digging up ethernet that will run from where my netgear is to where my office is, I need to get a better understanding of what you're looking for. 

And thank you for trying to help me on this. 

Expert

Re: random internet disconnects - netgear c7000v2

It's pretty straighforward. We are trying to narrow it down as to whether or not this is a WiFi only problem (WiFi opens up a ton of more issues), or a general connectivity problem with the Comcast coax cable system (which would affect both of the WiFi and wired connections. If you can't or won't try this test then nevermind.



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New Poster

Re: random internet disconnects - netgear c7000v2

I have the same problem. I had a Motorala modem/router connected via eternet when this started. I started believing it was my router/modem and replaced it with a new router and modem - the new one is a wireless connection. Guess what? Same problem with the new modem/router. It's been going on for a week

Frequent Visitor

Re: random internet disconnects - netgear c7000v2

Thank you for trying to help, don't get me wrong... It's just that I was a cable installer for Comcast and am familiar with how the setup should go.... Never had a problem with previous router/modem. Already had Comcast at the house to see if this was something on them... and it's not. I'm really interested in what you're looking for as I am also a techinical support engineer and am really comfortable with reading logs... Just not these particular logs. What should I be looking for? I see the disconnect message, and the connect message, 

 

[Internet connected] IP address: 71.232.86.254 1 Thu Nov 07 11:12:03 2019 0.0.0.0:0 0.0.0.0:0
[Time synchronized with ToD server] 1 Thu Nov 07 11:11:53 2019 0.0.0.0:0 0.0.0.0:0
[Internet disconnected] 1 Thu Nov 07 11:10:56 2019 0.0.0.0:0 0.0.0.0:0

 

And the same time frame from logs;

 

2019-11-7, 11:11:10 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.0;CM-VER=3.0;
2019-11-7, 11:10:55 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=3c:37:86:08:e2:c8;CMTS-MAC=d4:2c:44:7d:8b:96;CM-QOS=1.1;CM-VER=3.0;
2019-11-7, 11:10:46 Warning (5) Dynamic Range Window violation

So my assumption is that the T4 time out has something to do with it... so what causes that then?

 

 

Expert

Re: random internet disconnects - netgear c7000v2

https://pickmymodem.com/cable-modem-t3-and-t4-timeouts-error-messages-and-how-to-fix-them/



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Re: random internet disconnects - netgear c7000v2

Perfect! Thanks for the link. 

Expert

Re: random internet disconnects - netgear c7000v2

Quite welcome !



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