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Re: C6300 keeps dropping internet
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This happens several times a day for several minutes where the internet just drops. I haven’t changed my internet habits to initiate this intermediate problem. Called ISP, their end is good. I power cycled, reset the modem, and check all connections.
My current Firmware is V3.01.14
Hardware v4.0
When it stops working I do see a orange light on the upload symbol
I took a screenshot of the event logs
And the logs:
[Internet connected] 73.92.218.191 2 Sunday, 01 Aug 2021 19:17:51 0.0.0.0 0.0.0.0
[Time synchronized with ToD server] 1 Sunday, 01 Aug 2021 19:17:18 0.0.0.0 0.0.0.0
[Internet disconnected] 1 Sunday, 01 Aug 2021 19:16:39 0.0.0.0 0.0.0.0
[DHCP IP: (192.168.0.26)] to MAC address 70:2c:1f:7b:3e:b1 2 Sunday, 01 Aug 2021 19:16:09 0.0.0.0 0.0.0.0
Solved! Go to Solution.
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Please post a copy and paste of the modems connection status page.
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.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Mod...
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Re: C6300 keeps dropping internet
Aug 01 2021 19:17:21 Warning (5) MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Aug 01 2021 19:16:55 Critical (3) No Ranging Response received - T3 time-out
Aug 01 2021 19:16:26 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out
Aug 01 2021 19:12:29 Critical (3) No Ranging Response received - T3 time-out
Aug 01 2021 19:12:28 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted
Aug 01 2021 19:12:28 Critical (3) Ranging Request Retries exhausted
Aug 01 2021 19:12:20 Critical (3) No Ranging Response received - T3 time-out
Aug 01 2021 19:12:06 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted
Aug 01 2021 19:12:06 Critical (3) Ranging Request Retries exhausted
Aug 01 2021 19:11:39 Critical (3) No Ranging Response received - T3 time-out
Aug 01 2021 19:11:38 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted
Aug 01 2021 19:11:38 Critical (3) Ranging Request Retries exhausted
Aug 01 2021 19:10:54 Critical (3) No Ranging Response received - T3 time-out
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Please post a copy and paste of the modems connection status page.
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.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Mod...
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Re: C6300 keeps dropping internet
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. | |
|
<tabindex=-1>Startup Procedure</tabindex=-1>
Procedure | Status | Comment |
Acquire Downstream Channel | 579000000 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 | QAM 256 | 32 | 579000000 Hz | -1.2 dBmV | 38.6 dB | 67 | 62 |
2 | Locked | QAM 256 | 33 | 585000000 Hz | -1.4 dBmV | 38.6 dB | 68 | 30 |
3 | Locked | QAM 256 | 34 | 591000000 Hz | -1.5 dBmV | 38.9 dB | 80 | 27 |
4 | Locked | QAM 256 | 35 | 597000000 Hz | -1.5 dBmV | 37.6 dB | 57 | 31 |
5 | Locked | QAM 256 | 36 | 603000000 Hz | -1.4 dBmV | 38.6 dB | 58 | 28 |
6 | Locked | QAM 256 | 37 | 609000000 Hz | -1.5 dBmV | 38.9 dB | 63 | 21 |
7 | Locked | QAM 256 | 38 | 615000000 Hz | -1.7 dBmV | 37.6 dB | 74 | 22 |
8 | Locked | QAM 256 | 39 | 621000000 Hz | -2.0 dBmV | 37.6 dB | 78 | 29 |
9 | Locked | QAM 256 | 40 | 627000000 Hz | -2.0 dBmV | 37.3 dB | 86 | 23 |
10 | Locked | QAM 256 | 41 | 633000000 Hz | -2.0 dBmV | 37.6 dB | 87 | 23 |
11 | Locked | QAM 256 | 42 | 639000000 Hz | -2.2 dBmV | 37.6 dB | 56 | 30 |
12 | Locked | QAM 256 | 43 | 645000000 Hz | -2.5 dBmV | 37.6 dB | 64 | 23 |
13 | Locked | QAM 256 | 44 | 651000000 Hz | -2.7 dBmV | 37.3 dB | 103 | 0 |
14 | Locked | QAM 256 | 45 | 657000000 Hz | -3.0 dBmV | 37.3 dB | 81 | 0 |
15 | Locked | QAM 256 | 46 | 663000000 Hz | -3.0 dBmV | 37.3 dB | 88 | 17 |
16 | Locked | QAM 256 | 47 | 669000000 Hz | -3.0 dBmV | 37.6 dB | 97 | 9 |
Upstream Bonded Channels
Channel | Lock Status | US Channel Type | Channel ID | Symbol Rate | Frequency | Power |
1 | Locked | ATDMA | 2 | 5120 Ksym/sec | 22800000 Hz | 44.0 dBmV |
2 | Locked | ATDMA | 3 | 5120 Ksym/sec | 29200000 Hz | 43.8 dBmV |
3 | Locked | ATDMA | 4 | 5120 Ksym/sec | 35600000 Hz | 43.5 dBmV |
4 | Locked | ATDMA | 5 | 2560 Ksym/sec | 40400000 Hz | 44.3 dBmV |
Current System Time: Mon Aug 2 19:33:02 2021System Up Time: 1 day 03:32:33
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Re: C6300 keeps dropping internet
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Re: C6300 keeps dropping internet
So did the ISP correct the problem then?
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Re: C6300 keeps dropping internet
Keep on them. Review the suggestion given.
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Re: C6300 keeps dropping internet
this is an really an ISP problem. Logs clearly show it.
when you see "Unicast Maintenance Ranging attempted - No response - Retries exhausted" that means one of the upstream channels is having noise or completely disconnected. this is outside your home or street level noise.
who is the ISP?
Aug 01 2021 19:12:29 Critical (3) No Ranging Response received - T3 time-out
Aug 01 2021 19:12:28 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted
Aug 01 2021 19:12:28 Critical (3) Ranging Request Retries exhausted
Aug 01 2021 19:12:20 Critical (3) No Ranging Response received - T3 time-out
Aug 01 2021 19:12:06 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted
Aug 01 2021 19:12:06 Critical (3) Ranging Request Retries exhausted
Aug 01 2021 19:11:39 Critical (3) No Ranging Response received - T3 time-out
Aug 01 2021 19:11:38 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted
Aug 01 2021 19:11:38 Critical (3) Ranging Request Retries exhausted
Aug 01 2021 19:10:54 Critical (3) No Ranging Response received - T3 time-out
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