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Solved
C6300 keeps dropping internet
I have 9 devices, Included all the smart home stuff.
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
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
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-Modems/m-p/1530376#M12853
9 Replies
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-outPlease 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-Modems/m-p/1530376#M12853Frequency 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 <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
- ISP reports showing the modem in an active status and the device is not showing an up time reset. We were also able to successfully ping the device and receive replies with no packet loss.
So did the ISP correct the problem then?