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C7100v with Xfinity voice (reboots on some calls)
I have Xfinity Internet & Voice service, with 1 line connected to the TEL1 port. Intermittently, I will receive a call with one ring only, (no caller ID or call history saved), which reboots the ...
Thanks, I just double checked, and I don't have NOMOROBO service on this line. Maybe I should considering that's the bulk of calls. I could spend hours blocking numbers.
Please post a copy and paste of the modems connection status and event log page.
https://kb.netgear.com/30007/How-do-I-obtain-the-cable-connection-information-from-a-NETGEAR-cable-modem-modem-router
https://kb.netgear.com/30008/How-do-I-view-or-clear-the-event-logs-on-my-NETGEAR-cable-modem-or-modem-router
Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables
1 Locked QAM256 4 471000000 Hz 1.7 dBmV 44.7 dB 0 0
2 Locked QAM256 1 453000000 Hz 1.7 dBmV 45.0 dB 0 0
3 Locked QAM256 2 459000000 Hz 1.9 dBmV 45.0 dB 0 0
4 Locked QAM256 3 465000000 Hz 1.7 dBmV 44.8 dB 0 0
5 Locked QAM256 5 477000000 Hz 1.6 dBmV 44.6 dB 0 0
6 Locked QAM256 6 483000000 Hz 1.4 dBmV 44.4 dB 0 0
7 Locked QAM256 7 489000000 Hz 1.6 dBmV 44.6 dB 0 0
8 Locked QAM256 8 495000000 Hz 1.2 dBmV 44.3 dB 0 0
9 Locked QAM256 9 501000000 Hz 1.5 dBmV 44.4 dB 0 0
10 Locked QAM256 10 507000000 Hz 1.1 dBmV 38.3 dB 0 0
11 Locked QAM256 11 513000000 Hz 1.5 dBmV 44.3 dB 0 0
12 Locked QAM256 12 519000000 Hz 1.3 dBmV 44.0 dB 0 0
13 Locked QAM256 13 525000000 Hz 1.3 dBmV 44.0 dB 0 0
14 Locked QAM256 14 531000000 Hz 1.4 dBmV 44.0 dB 0 0
15 Locked QAM256 15 537000000 Hz 1.0 dBmV 43.6 dB 0 0
16 Locked QAM256 16 543000000 Hz 1.5 dBmV 43.9 dB 0 0
17 Locked QAM256 17 549000000 Hz 0.8 dBmV 43.3 dB 0 0
18 Locked QAM256 18 555000000 Hz 1.1 dBmV 43.3 dB 0 0
19 Locked QAM256 19 561000000 Hz 1.0 dBmV 43.2 dB 0 0
20 Locked QAM256 20 567000000 Hz 1.1 dBmV 43.2 dB 0 0
21 Locked QAM256 21 573000000 Hz 1.4 dBmV 43.8 dB 0 0
22 Locked QAM256 22 579000000 Hz 1.0 dBmV 43.2 dB 0 0
23 Locked QAM256 23 585000000 Hz 1.5 dBmV 43.3 dB 0 0
24 Locked QAM256 24 591000000 Hz 0.9 dBmV 43.2 dB 0 0
Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 2 5120 Ksym/sec 22800000 Hz 36.5 dBmV
2 Locked ATDMA 1 5120 Ksym/sec 16400000 Hz 36.3 dBmV
3 Locked ATDMA 3 5120 Ksym/sec 29200000 Hz 36.3 dBmV
4 Locked ATDMA 4 5120 Ksym/sec 35600000 Hz 35.5 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
Time Priority Description
2024-05-22, 16:11:14.0 Critical (3) Resetting the cable modem due to docsDevResetNow
2024-05-18, 18:34:09.0 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:bc:b1:d8;CMTS-MAC=00:90:f0:03:00:00;CM-QOS=1.1;CM-VER=3.0;
2024-05-16, 09:56:39.0 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:bc:b1:d8;CMTS-MAC=00:90:f0:03:00:00;CM-QOS=1.1;CM-VER=3.0;
2024-05-15, 19:46:56.0 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:bc:b1:d8;CMTS-MAC=00:90:f0:03:00:00;CM-QOS=1.1;CM-VER=3.0;
2024-05-11, 16:42:25.0 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:bc:b1:d8;CMTS-MAC=00:90:f0:03:00:00;CM-QOS=1.1;CM-VER=3.0;
2024-05-02, 18:15:11.0 Critical (3) Resetting the cable modem due to docsDevResetNow
2024-05-02, 17:46:07.0 Critical (3) Resetting the cable modem due to docsDevResetNow
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv6
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv6
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv6
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv6
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv6
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv6
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv6
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv6
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv6
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv6
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv6
Time Not Established Notice (6) WiFi Interface [wl0] set to Channel 1 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl0] set to Channel 11 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl0] set to Channel 1 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl0] set to Channel 1 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl0] set to Channel 11 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl0] set to Channel 1 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl0] set to Channel 1 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl0] set to Channel 1 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl0] set to Channel 1 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl0] set to Channel 1 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl0] set to Channel 11 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
Power levels are good along with Correctables and Un-correctables.
Any Criticals, Errors or Warnings seen in the event logs needs to be reviewed and resolved by the ISP. Indicates a signal issue on the ISP line up to the modem.
Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
Be sure there are no 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.
Start with removing any amplifiers, signal attenuators, or splitters from the coax.
From there check the line for kinks, damage, moisture in the line.
Check the connectors for improperly made ends, foil touching the copper coax line, loose connections, bad/old/cheap connectors, or corroded connections. Replace them if you do.
Be sure to power OFF the modem for 1 minute then back ON.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html
https://highspeed.tips/docsis-events/Be sure to disable any MAC Address randomizers on phones and pads while at home:
https://community.netgear.com/t5/Nighthawk-App/NETGEAR-Mobile-Applications-and-Apple-Devices-FAQ/td-p/2220015/jump-to/first-unread-messageAs this is not a Comcast provided modem, Xfinity had me work with Netgear support first. They determined there were signal issues, so I had a Comcast tech come here to check the line.
All lines were checked and cables changed. As this didn't improve the signal, an attenuator was install, vastly improving the signal.
As the phone issue persisted, I had them come out a second time. Lines and cables were checked, signal was good, they stated there were no issues on their end.
The last time I had Comcast check they determined it was a hardware issue with the modem and Netgear agreed, an replaced the modem.
The connection is from the line to the cable box, and from there, straight through the wall to the modem. There are no splitters. Signals have been checked and the modem reprovisioned several times. I have probably power cycled this thing 100 times and reset it at least a dozen.
I'm sure it's an issue with Xfinity, but their proposed solution is for me to rent one of their gateways, which I'm unable and willing to do at this time.
This is a definitely a head scratcher.
.