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Forum Discussion
CM1100 - 3 Day Old, keeps disconnection with high upstream power, using Spectrum
I think I posted on wrong forum- re posting here: Spectrum Ticket: 33699396 Just got my modem 3 days ago and set it up. Had a Spectrum tech come out yesterday and took out extra s...
Modem 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. | |
|
| Procedure | Status | Comment |
| Acquire Downstream Channel | 777000000 Hz | Locked |
| Connectivity State | OK | Operational |
| Boot State | OK | Operational |
| Security | Enable | BPI+ |
| IP Provisioning Mode | Honor MDD | IPv4 only |
| Channel | Lock Status | Modulation | Channel ID | Frequency | Power | SNR / MER | Unerrored Codewords | Correctable Codewords | Uncorrectable Codewords |
| 1 | Locked | QAM256 | 28 | 777000000 Hz | -3.4 dBmV | 42.0 dB | 115624863 | 1960 | 2806 |
| 2 | Locked | QAM256 | 1 | 615000000 Hz | 0.2 dBmV | 43.6 dB | 114482630 | 4759 | 6042 |
| 3 | Locked | QAM256 | 2 | 621000000 Hz | 0.5 dBmV | 43.4 dB | 114480288 | 4755 | 5886 |
| 4 | Locked | QAM256 | 3 | 627000000 Hz | 0.4 dBmV | 43.8 dB | 114484903 | 4369 | 5681 |
| 5 | Locked | QAM256 | 4 | 633000000 Hz | -0.2 dBmV | 43.5 dB | 114488865 | 4134 | 5424 |
| 6 | Locked | QAM256 | 5 | 639000000 Hz | 0.0 dBmV | 43.7 dB | 114492659 | 4021 | 5240 |
| 7 | Locked | QAM256 | 6 | 645000000 Hz | 0.0 dBmV | 43.5 dB | 114495919 | 3917 | 5175 |
| 8 | Locked | QAM256 | 7 | 651000000 Hz | -0.2 dBmV | 43.4 dB | 114499612 | 3851 | 5067 |
| 9 | Locked | QAM256 | 8 | 657000000 Hz | -0.6 dBmV | 43.4 dB | 114502924 | 3654 | 4684 |
| 10 | Locked | QAM256 | 9 | 663000000 Hz | -0.8 dBmV | 43.3 dB | 114507932 | 3505 | 4461 |
| 11 | Locked | QAM256 | 10 | 669000000 Hz | -0.9 dBmV | 43.1 dB | 114512110 | 3517 | 4279 |
| 12 | Locked | QAM256 | 11 | 675000000 Hz | -1.5 dBmV | 42.6 dB | 114515786 | 3304 | 4310 |
| 13 | Locked | QAM256 | 12 | 681000000 Hz | -2.1 dBmV | 42.6 dB | 114519677 | 3317 | 4263 |
| 14 | Locked | QAM256 | 13 | 687000000 Hz | -1.7 dBmV | 42.6 dB | 114523325 | 3129 | 4266 |
| 15 | Locked | QAM256 | 14 | 693000000 Hz | -1.5 dBmV | 42.6 dB | 114526607 | 3181 | 4094 |
| 16 | Locked | QAM256 | 15 | 699000000 Hz | -1.7 dBmV | 42.5 dB | 114531887 | 3157 | 3861 |
| 17 | Locked | QAM256 | 16 | 705000000 Hz | -1.9 dBmV | 42.2 dB | 114535435 | 3072 | 4596 |
| 18 | Locked | QAM256 | 17 | 711000000 Hz | -1.4 dBmV | 42.3 dB | 114540112 | 2802 | 3708 |
| 19 | Locked | QAM256 | 18 | 717000000 Hz | -0.9 dBmV | 42.7 dB | 114544324 | 2655 | 3504 |
| 20 | Locked | QAM256 | 19 | 723000000 Hz | -1.5 dBmV | 42.6 dB | 114548196 | 2497 | 3442 |
| 21 | Locked | QAM256 | 20 | 729000000 Hz | -1.6 dBmV | 42.5 dB | 114552057 | 2464 | 3434 |
| 22 | Locked | QAM256 | 21 | 735000000 Hz | -1.4 dBmV | 42.9 dB | 114556020 | 2345 | 3271 |
| 23 | Locked | QAM256 | 22 | 741000000 Hz | -1.3 dBmV | 43.0 dB | 114560207 | 2126 | 3014 |
| 24 | Locked | QAM256 | 23 | 747000000 Hz | -1.9 dBmV | 42.8 dB | 114563759 | 2396 | 2999 |
| 25 | Locked | QAM256 | 24 | 753000000 Hz | -2.2 dBmV | 42.6 dB | 114567680 | 2027 | 3026 |
| 26 | Locked | QAM256 | 25 | 759000000 Hz | -1.9 dBmV | 42.8 dB | 114571795 | 2131 | 2969 |
| 27 | Locked | QAM256 | 26 | 765000000 Hz | -2.2 dBmV | 42.8 dB | 114575593 | 2062 | 2805 |
| 28 | Locked | QAM256 | 27 | 771000000 Hz | -2.7 dBmV | 42.4 dB | 114579916 | 2006 | 2881 |
| 29 | Locked | QAM256 | 29 | 783000000 Hz | -2.6 dBmV | 42.6 dB | 114603602 | 1911 | 2843 |
| 30 | Locked | QAM256 | 30 | 789000000 Hz | -2.3 dBmV | 42.7 dB | 114587995 | 1719 | 2595 |
| 31 | Locked | QAM256 | 31 | 795000000 Hz | -2.8 dBmV | 42.3 dB | 114591335 | 1689 | 2554 |
| 32 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV | 0.0 dB | 0 | 0 | 0 |
<Upstream Bonded Channels (Partial Service)<
| Channel | Lock Status | Modulation | Channel ID | Frequency | Power |
| 1 | Locked | ATDMA | 1 | 17600000 Hz | 51.3 dBmV |
| 2 | Locked | ATDMA | 2 | 24000000 Hz | 52.8 dBmV |
| 3 | Locked | ATDMA | 3 | 30400000 Hz | 58.8 dBmV |
| 4 | Locked | ATDMA | 4 | 36800000 Hz | 53.3 dBmV |
| 5 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV |
| 6 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV |
| 7 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV |
| 8 | Not Locked | Unknown | 0 | 0 Hz | 0.0 dBmV |
Downstream OFDM Channels
| Channel | Lock Status | Modulation / Profile ID | Channel ID | Frequency | Power | SNR / MER | Active Subcarrier Number Range | Unerrored Codewords | Correctable Codewords | Uncorrectable Codewords |
| 1 | Locked | 0, 1, 2, 255 | 159 | 848000000 Hz | -3.0 dBmV | 39.8 dB | 1108 ~ 2987 | 301281835 | 210154739 | 25 |
| 2 | Not Locked | 0, 255 | 0 | 0 Hz | 1.9 dBmV | 0.0 dB | 0 ~ 4095 | 0 | 0 | 0 |
Upstream OFDMA Channels
| Channel | Lock Status | Modulation / Profile ID | Channel ID | Frequency | Power |
| 1 | Not Locked | Unknown | 0 | 0 Hz | 0 dBmV |
| 2 | Not Locked | Unknown | 0 | 0 Hz | 0 dBmV |
The 58dbmv would cause issues on the line.
Spectrum would need to recheck the line. They fight checking lines.
I've actually had to rent one of their modems to prove to them it wasn't the "third party" device and get them to fix a line. Then once its fixed, going back to my own modem.
So a tech came today and checked everything from the pole drop to the modem line. Replaced pole connectors, the tech who came yesreday forgot to crimp a fitting smdh.
However, there is an issue with the modem too.
I still have my old modem so I hooked and rehooked it up to compare the 12 year old SBG6580 and the 3 day old CM1100.
Why is there an extra 2-3 dBmV on the CM1100? Is this normal or do I have a bad modem?
SBG6580:
Downstream Bonded Channels Channel Lock Status Modulation Channel ID Frequency Power SNR Corrected Uncorrectables 1 Locked QAM256 1 615000000 Hz 3.3 dBmV 42.0 dB 0 0 2 Locked QAM256 2 621000000 Hz 3.3 dBmV 42.5 dB 0 0 3 Locked QAM256 3 627000000 Hz 3.4 dBmV 42.0 dB 0 0 4 Locked QAM256 4 633000000 Hz 2.9 dBmV 41.9 dB 0 0 5 Locked QAM256 5 639000000 Hz 2.5 dBmV 41.9 dB 0 0 6 Locked QAM256 6 645000000 Hz 2.9 dBmV 42.0 dB 0 0 7 Locked QAM256 7 651000000 Hz 2.6 dBmV 42.0 dB 0 0 8 Locked QAM256 8 657000000 Hz 2.2 dBmV 41.4 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 24000000 Hz 47.0 dBmV 2 Locked ATDMA 1 5120 Ksym/sec 17600000 Hz 46.2 dBmV 3 Locked ATDMA 3 5120 Ksym/sec 30400000 Hz 47.7 dBmV 4 Locked ATDMA 4 5120 Ksym/sec 36800000 Hz 48.2 dBmV CM1100:
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. Starting Frequency Startup Procedure
Procedure Status Comment Acquire Downstream Channel 759000000 Hz Locked Connectivity State OK Operational Boot State OK Operational Security Enable BPI+ IP Provisioning Mode Honor MDD IPv4 only Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR / MER Unerrored Codewords Correctable Codewords Uncorrectable Codewords 1 Locked QAM256 25 759000000 Hz 0.0 dBmV 40.5 dB 62683378 0 0 2 Locked QAM256 1 615000000 Hz 2.1 dBmV 43.3 dB 61724613 0 0 3 Locked QAM256 2 621000000 Hz 2.2 dBmV 43.3 dB 61727864 0 0 4 Locked QAM256 3 627000000 Hz 2.0 dBmV 43.2 dB 61731617 0 0 5 Locked QAM256 4 633000000 Hz 1.5 dBmV 42.9 dB 61734745 0 0 6 Locked QAM256 5 639000000 Hz 1.6 dBmV 43.1 dB 61736552 0 0 7 Locked QAM256 6 645000000 Hz 1.4 dBmV 43.0 dB 61741901 0 0 8 Locked QAM256 7 651000000 Hz 1.2 dBmV 42.7 dB 61746046 0 0 9 Locked QAM256 8 657000000 Hz 1.1 dBmV 42.7 dB 61749297 0 0 10 Locked QAM256 9 663000000 Hz 0.9 dBmV 42.4 dB 61752859 0 0 11 Locked QAM256 10 669000000 Hz 0.9 dBmV 42.4 dB 61756324 0 0 12 Locked QAM256 11 675000000 Hz 0.5 dBmV 41.6 dB 61761621 0 0 13 Locked QAM256 12 681000000 Hz 0.3 dBmV 42.0 dB 61764778 0 0 14 Locked QAM256 13 687000000 Hz 0.6 dBmV 41.6 dB 61768533 0 0 15 Locked QAM256 14 693000000 Hz 0.6 dBmV 41.0 dB 61773030 0 0 16 Locked QAM256 15 699000000 Hz 0.3 dBmV 40.6 dB 61776696 0 0 17 Locked QAM256 16 705000000 Hz 0.0 dBmV 40.1 dB 61778387 211 867 18 Locked QAM256 17 711000000 Hz 0.4 dBmV 39.8 dB 61783098 118 494 19 Locked QAM256 18 717000000 Hz 0.7 dBmV 40.0 dB 61787685 0 0 20 Locked QAM256 19 723000000 Hz 0.1 dBmV 40.3 dB 61791148 0 0 21 Locked QAM256 20 729000000 Hz -0.1 dBmV 41.3 dB 61794421 0 0 22 Locked QAM256 21 735000000 Hz 0.1 dBmV 42.2 dB 61798302 0 0 23 Locked QAM256 22 741000000 Hz 0.3 dBmV 41.6 dB 61802556 0 0 24 Locked QAM256 23 747000000 Hz -0.2 dBmV 40.7 dB 61805961 0 0 25 Locked QAM256 24 753000000 Hz -0.3 dBmV 40.4 dB 61810009 1 0 26 Locked QAM256 26 765000000 Hz -0.1 dBmV 40.6 dB 61813549 0 0 27 Locked QAM256 27 771000000 Hz -0.6 dBmV 40.4 dB 61817160 0 0 28 Locked QAM256 28 777000000 Hz -1.3 dBmV 40.4 dB 61810387 3794 6724 29 Locked QAM256 29 783000000 Hz -0.5 dBmV 40.9 dB 61820554 2265 1617 30 Locked QAM256 30 789000000 Hz -0.2 dBmV 40.9 dB 61825204 0 0 31 Locked QAM256 31 795000000 Hz -0.9 dBmV 40.6 dB 61827802 0 0 32 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0 0 Upstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power 1 Locked ATDMA 1 17600000 Hz 49.5 dBmV 2 Locked ATDMA 2 24000000 Hz 50.5 dBmV 3 Locked ATDMA 3 30400000 Hz 50.5 dBmV 4 Locked ATDMA 4 36800000 Hz 51.0 dBmV 5 Not Locked Unknown 0 0 Hz 0.0 dBmV 6 Not Locked Unknown 0 0 Hz 0.0 dBmV 7 Not Locked Unknown 0 0 Hz 0.0 dBmV 8 Not Locked Unknown 0 0 Hz 0.0 dBmV Downstream OFDM Channels
Channel Lock Status Modulation / Profile ID Channel ID Frequency Power SNR / MER Active Subcarrier Number Range Unerrored Codewords Correctable Codewords Uncorrectable Codewords 1 Locked 0, 1, 2, 255 159 848000000 Hz -1.0 dBmV 39.5 dB 1108 ~ 2987 161967520 111423613 0 2 Not Locked 0, 255 0 0 Hz 5.5 dBmV 0.0 dB 0 ~ 4095 0 0 0 Upstream OFDMA Channels
Channel Lock Status Modulation / Profile ID Channel ID Frequency Power 1 Not Locked Unknown 0 0 Hz 0 dBmV 2 Not Locked Unknown 0 0 Hz 0 dBmV
