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Forum Discussion
CM1100 - 3 Day Old, keeps disconnection with high upstream power, using Spectrum
Just got my modem 3 days ago and set it up. Had a Spectrum tech come out yesterday and took out extra splitters and checked all my signals. I don't think it made much a difference. My upstream power hovers around 51-52 dB so any flucutations to that spikes it over 53 dB and causes a T3 error and disconnect.
Almost every Spectrum rep wants to blame my for using my own equipment, even though I had this problem with my old modem and bought this modem to upgrade. I just had it re-provisioned this morning after a factory reset of the modem and the issue is still happening.
My coax is running straight from a grounding box to my outlet, then to a splitter that goes to my HD-DVR box and my modem. There was am amp there before that the tech took out yesterday; he said it was bad. However, before the tech visit and after, I did not see a noticable change in upstream power.
Is there anything I can do? Would exchanging the modem for another CM1100 have any difference? I'm not sure it would, as when there is connection, the model works great, but the disconnects happen sometimes every minute.
3 Replies
Modem Status:
Apply 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 <tabindex=-1>Startup Procedure</tabindex=-1>
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 <tabindex=-1>Downstream Bonded Channels</tabindex=-1>
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 <tabindex=-1>Upstream Bonded Channels (Partial Service)</tabindex=-1>
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 <tabindex=-1>Downstream OFDM Channels</tabindex=-1>
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 <tabindex=-1>Upstream OFDMA Channels</tabindex=-1>
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 I have a Spectrum Ticket if this helps:
33699396
Thanks.
Have the ISP check the signal and line quality UP to the modem.
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.
Be sure to power OFF the modem for 1 minute them back ON.
