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Forum Discussion
Dvankouwenberg
Aug 27, 2024Aspirant
CM2500 poor status - upstream
My internet drops randomly numerous times per day. I have talked with Spectrum a couple of times and had a tech out. They say everything is good on their end. I installed a new CM2500. the upstream status says poor. My levels all look good. Any thoughts?
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Downstream Bonded Channels | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Upstream Bonded Channels (Partial Service) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Downstream OFDM Channels | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Upstream OFDMA Channels | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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5 Replies
- FURRYe38Guru - Experienced User
Please post a copy and paste of the modems event log page.
https://kb.netgear.com/30008/How-do-I-view-or-clear-the-event-logs-on-my-NETGEAR-cable-modem-or-modem-routerHave 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 - plemansGuru - Experienced User
the problem is that they aren't really balanced out. If the upstream is that low, you'd expect your downstream to be significantly higher. An upstream of 39dbmv means you're right next to the hub but the upstream is indicating you're a ways away from the hub.
- DvankouwenbergAspirant
Spectrum came out and made adjustments. See below details. One had out outage last night.
Startup Procedure Procedure Status Comment Acquire Downstream Channel 477000000 Hz Locked Connectivity State OK Operational Boot State OK Operational Security Enabled BPI+ IP Provisioning Mode IPv6 Only IPv6 only Downstream Bonded Channels Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables 1 Locked QAM256 3 477000000 Hz -2.1 dBmV 43.3 dB 17 54 2 Locked QAM256 1 465000000 Hz -1.2 dBmV 44.1 dB 0 0 3 Locked QAM256 2 471000000 Hz -1.5 dBmV 43.9 dB 0 0 4 Locked QAM256 4 483000000 Hz -2.3 dBmV 43.3 dB 0 0 5 Locked QAM256 5 489000000 Hz -1.7 dBmV 43.8 dB 0 0 6 Locked QAM256 6 495000000 Hz -1.8 dBmV 43.8 dB 0 0 7 Locked QAM256 7 501000000 Hz -2.7 dBmV 43.2 dB 0 0 8 Locked QAM256 8 507000000 Hz -2.9 dBmV 43.1 dB 0 0 9 Locked QAM256 9 513000000 Hz -2.5 dBmV 43.3 dB 0 0 10 Locked QAM256 10 519000000 Hz -2.3 dBmV 43.5 dB 0 0 11 Locked QAM256 11 525000000 Hz -2.8 dBmV 43.1 dB 0 0 12 Locked QAM256 12 531000000 Hz -2.7 dBmV 43.0 dB 0 0 13 Locked QAM256 13 537000000 Hz -2.6 dBmV 43.1 dB 0 0 14 Locked QAM256 15 549000000 Hz -2.9 dBmV 43.0 dB 0 0 15 Locked QAM256 16 555000000 Hz -3.2 dBmV 42.8 dB 0 0 16 Locked QAM256 17 561000000 Hz -3.0 dBmV 43.0 dB 0 0 17 Locked QAM256 18 567000000 Hz -3.0 dBmV 43.0 dB 0 0 18 Locked QAM256 19 573000000 Hz -3.5 dBmV 42.6 dB 0 0 19 Locked QAM256 20 579000000 Hz -3.5 dBmV 42.7 dB 0 0 20 Locked QAM256 21 585000000 Hz -3.3 dBmV 42.9 dB 0 0 21 Locked QAM256 22 591000000 Hz -3.3 dBmV 42.9 dB 0 0 22 Locked QAM256 23 597000000 Hz -4.0 dBmV 42.5 dB 0 0 23 Locked QAM256 24 603000000 Hz -4.3 dBmV 42.3 dB 0 0 24 Locked QAM256 26 609000000 Hz -3.9 dBmV 42.7 dB 0 0 25 Locked QAM256 27 615000000 Hz -3.8 dBmV 42.5 dB 0 0 26 Locked QAM256 28 621000000 Hz -4.5 dBmV 42.3 dB 0 0 27 Locked QAM256 29 627000000 Hz -4.9 dBmV 42.0 dB 0 0 28 Locked QAM256 30 633000000 Hz -4.6 dBmV 42.3 dB 0 0 29 Locked QAM256 31 639000000 Hz -4.5 dBmV 42.3 dB 0 0 30 Locked QAM256 32 645000000 Hz -5.0 dBmV 42.1 dB 0 0 31 Locked QAM256 33 651000000 Hz -5.6 dBmV 41.6 dB 0 0 32 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0 Upstream Bonded Channels Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power 1 Locked ATDMA 1 5120 Ksym/sec 18200000 Hz 38.5 dBmV 2 Locked ATDMA 2 5120 Ksym/sec 24600000 Hz 40.0 dBmV 3 Locked ATDMA 3 5120 Ksym/sec 31000000 Hz 41.3 dBmV 4 Locked ATDMA 4 5120 Ksym/sec 37400000 Hz 42.0 dBmV 5 Not Locked Unknown 0 0 0 0.0 dBmV 6 Not Locked Unknown 0 0 0 0.0 dBmV 7 Not Locked Unknown 0 0 0 0.0 dBmV 8 Not Locked Unknown 0 0 0 0.0 dBmV Downstream OFDM Channels Channel Lock Status Profile ID Channel ID Frequency Power SNR / MER Active Subcarrier
Number RangeUnerrored
CodewordsCorrectable
CodewordsUncorrectable
Codewords1 Locked 0 ,1 ,2 25 662000000 Hz -4.92 dBmV 41.5 dB 1108 ~ 2987 2171077025 2080932540 0 2 Not Locked 0 0 0 Hz 0 dBmV 0 dB 0 ~ 4095 0 0 0 Upstream OFDMA Channels Channel Lock Status Modulation / Profile ID Channel ID Frequency Power 1 Locked 10 ,13 9 37925000 Hz 36.3 dBmV 2 Locked 12 ,13 10 104800000 Hz 40.0 dBmV - DvankouwenbergAspirant
Here is the log from the outage>
Time Priority Description Wed Aug 28 13:54:05 2024 (Notice (6)) CM-STATUS message sent. Event Type Code: 4; Chan ID: 1 15; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 13:53:51 2024 (Warning (5)) MDD message timeout;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 13:44:45 2024 (Warning (5)) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 13:01:55 2024 (Notice (6)) CM-STATUS message sent. Event Type Code: 4; Chan ID: 1 15; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 13:01:44 2024 (Warning (5)) MDD message timeout;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 12:32:37 2024 (Warning (5)) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 12:26:20 2024 (Notice (6)) CM-STATUS message sent. Event Type Code: 4; Chan ID: 15; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 12:26:05 2024 (Warning (5)) MDD message timeout;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 12:14:50 2024 (Warning (5)) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 10:59:16 2024 (Warning (5)) DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 10:59:16 2024 (Notice (6)) US profile assignment change. US Chan ID: 10; Previous Profile: 9 13; New Profile: 12 13.;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 10:59:06 2024 (Critical (3)) No Ranging Response received - T3 time-out;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 10:59:06 2024 (Warning (5)) REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 10:59:06 2024 (Notice (6)) US profile assignment change. US Chan ID: 9; Previous Profile: 13; New Profile: 10 13.;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 10:59:01 2024 (Warning (5)) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 10:59:01 2024 (Notice (6)) DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2.;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 10:59:00 2024 (Notice (6)) TLV-11 - unrecognized OID;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 10:59:00 2024 (Error (4)) Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 10:59:00 2024 (Error (4)) Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 10:58:50 2024 (Notice (6)) Overriding MDD IP initialization parameters; IP provisioning mode = IPv6 Wed Aug 28 10:58:38 2024 (Critical (3)) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 10:48:32 2024 (Warning (5)) ToD request sent - No Response received;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 10:48:04 2024 (Warning (5)) MDD message timeout;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 10:35:08 2024 (Warning (5)) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 06:32:51 2024 (Critical (3)) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 06:32:46 2024 (Warning (5)) MDD message timeout;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 06:31:29 2024 (Warning (5)) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 05:13:10 2024 (Warning (5)) DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 05:13:10 2024 (Notice (6)) US profile assignment change. US Chan ID: 10; Previous Profile: 10 13; New Profile: 11 13.;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 05:13:10 2024 (Warning (5)) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 01:23:26 2024 (Warning (5)) MDD message timeout;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 01:23:14 2024 (Critical (3)) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Wed Aug 28 01:23:12 2024 (Warning (5)) MDD message timeout;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Tue Aug 27 23:22:56 2024 (Warning (5)) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Tue Aug 27 20:55:27 2024 (Warning (5)) DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Tue Aug 27 20:55:27 2024 (Notice (6)) US profile assignment change. US Chan ID: 10; Previous Profile: 11 13; New Profile: 10 13.;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Tue Aug 27 20:50:21 2024 (Warning (5)) DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Tue Aug 27 20:50:21 2024 (Notice (6)) US profile assignment change. US Chan ID: 9; Previous Profile: 11 13; New Profile: 10 13.;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Tue Aug 27 20:45:24 2024 (Warning (5)) DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1; Tue Aug 27 20:45:24 2024 (Notice (6)) US profile assignment change. US Chan ID: 10; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=e0:46:ee:90:96:4b;CMTS-MAC=00:01:5c:8b:9e:59;CM-QOS=1.1;CM-VER=3.1;