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Nighthawk AC1900 (C7000v2) Disconnects Frequently
For almost a week now, my modem has been losing its internet connection for several minutes at a time. This loss is simultaneous across all devices, both wired and wireless. Outside of these drops, p...
What Firmware version is currently loaded?
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
What Wi-Fi channels are you using?
Any Wi-Fi Neighbors near by? If so, how many?
Connection Status:
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. | |
|
Startup Procedure
| Procedure | Status | Comment |
| Acquire Downstream Channel | 603000000 Hz | Locked |
| Connectivity State | OK | Operational |
| Boot State | OK | Operational |
| Security | Disabled | Disabled |
| IP Provisioning Mode | Honor MDD | honorMdd(4) |
Downstream Bonded Channels
| Channel | Lock Status | Modulation | Channel ID | Frequency | Power | SNR | Correctables | Uncorrectables |
| 1 | Locked | QAM256 | 17 | 603000000 Hz | 2.7 dBmV | 37.4 dB | 3 | 0 |
| 2 | Locked | QAM256 | 1 | 507000000 Hz | 1 dBmV | 36.6 dB | 134 | 69 |
| 3 | Locked | QAM256 | 2 | 513000000 Hz | 1.2 dBmV | 36.4 dB | 232 | 426 |
| 4 | Locked | QAM256 | 4 | 525000000 Hz | 1.4 dBmV | 36.9 dB | 158 | 146 |
| 5 | Locked | QAM256 | 5 | 531000000 Hz | 1.8 dBmV | 37.1 dB | 133 | 87 |
| 6 | Locked | QAM256 | 6 | 537000000 Hz | 1.7 dBmV | 37.2 dB | 83 | 90 |
| 7 | Locked | QAM256 | 7 | 543000000 Hz | 2.2 dBmV | 37.3 dB | 40 | 1 |
| 8 | Locked | QAM256 | 8 | 549000000 Hz | 2.1 dBmV | 36.3 dB | 8 | 0 |
| 9 | Locked | QAM256 | 9 | 555000000 Hz | 2.1 dBmV | 35.8 dB | 5 | 0 |
| 10 | Locked | QAM256 | 10 | 561000000 Hz | 2.2 dBmV | 36.8 dB | 1 | 0 |
| 11 | Locked | QAM256 | 11 | 567000000 Hz | 2.1 dBmV | 37.3 dB | 0 | 0 |
| 12 | Locked | QAM256 | 12 | 573000000 Hz | 2.3 dBmV | 37.3 dB | 0 | 0 |
| 13 | Locked | QAM256 | 13 | 579000000 Hz | 2.1 dBmV | 37.3 dB | 0 | 0 |
| 14 | Locked | QAM256 | 14 | 585000000 Hz | 2.3 dBmV | 37.3 dB | 55 | 2 |
| 15 | Locked | QAM256 | 15 | 591000000 Hz | 2.5 dBmV | 37.3 dB | 36 | 0 |
| 16 | Locked | QAM256 | 18 | 609000000 Hz | 2.6 dBmV | 37.3 dB | 11 | 0 |
| 17 | Locked | QAM256 | 21 | 627000000 Hz | 1.8 dBmV | 37.1 dB | 0 | 0 |
| 18 | Locked | QAM256 | 24 | 645000000 Hz | 1.3 dBmV | 36.9 dB | 0 | 0 |
| 19 | Locked | QAM256 | 25 | 651000000 Hz | 1.5 dBmV | 37.1 dB | 0 | 0 |
| 20 | Locked | QAM256 | 27 | 663000000 Hz | 1.3 dBmV | 36.8 dB | 0 | 0 |
| 21 | Locked | QAM256 | 28 | 669000000 Hz | 1.3 dBmV | 36.7 dB | 0 | 0 |
| 22 | Locked | QAM256 | 30 | 681000000 Hz | 1.2 dBmV | 36.6 dB | 0 | 0 |
| 23 | Locked | QAM256 | 31 | 687000000 Hz | 1.6 dBmV | 36.6 dB | 0 | 0 |
| 24 | Locked | QAM256 | 32 | 693000000 Hz | 1.3 dBmV | 36.5 dB | 0 | 0 |
Upstream Bonded Channels
| Channel | Lock Status | US Channel Type | Channel ID | Symbol Rate | Frequency | Power |
| 1 | Locked | ATDMA | 8 | 5120 Ksym/sec | 37400000 Hz | 51.5 dBmV |
| 2 | Not Locked | Unknown | 0 | 0 Ksym/sec | 0 Hz | 0.0 dBmV |
| 3 | Not Locked | Unknown | 0 | 0 Ksym/sec | 0 Hz | 0.0 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 |
Power levels are with in spec:
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
However you have some Correctables and Uncorrecables that should be mostly zeros and you have lots of Critcials and Warnings and a Error that indicates a signal line issue from the ISP, that needs to be reviewed by the ISP and resolved by them:
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.htmlI've made another call and ISP will be sending a technician on 06/03 to investigate. ISP support saw no abnormal indications on their end at any point during this call, before or after performing the standard reboot and signal reset.
Have them look at the event logs and the correctables and un-correctables.