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ReidT's avatar
ReidT
New Contributor
4 years ago

Not Getting Gigablast Speeds

I recently upgraded my service and I am only getting 300-600 mbps and I am averaging around 400 mbps. I have a CM1100 DOCIS 3.1 modem. I have had multiple tech's out to fix issues on their end (terminations are curb and amplifier in node) and I have only seen a small improvement from what I was getting prior to the fixes, 200-500 mbps. Here my modem connection stats are below. Anyone have any ideas?

<tabindex=-1>Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 429000000 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
Channel Lock Status Modulation Channel ID Frequency Power SNR / MER Unerrored Codewords Correctable Codewords Uncorrectable Codewords
1 Locked QAM256 45 429000000 Hz 10.1 dBmV 40.8 dB 2801785 0 0
2 Locked QAM256 1 783000000 Hz 13.5 dBmV 40.9 dB 1337705 0 0
3 Locked QAM256 15 867000000 Hz 12.3 dBmV 39.9 dB 1341095 0 0
4 Locked QAM256 17 879000000 Hz 12.4 dBmV 40.1 dB 1345143 0 0
5 Locked QAM256 18 885000000 Hz 12.9 dBmV 40.0 dB 1348655 0 0
6 Locked QAM256 19 891000000 Hz 13.0 dBmV 40.3 dB 1352222 0 0
7 Locked QAM256 20 897000000 Hz 12.6 dBmV 38.9 dB 1355980 0 0
8 Locked QAM256 21 903000000 Hz 11.6 dBmV 40.0 dB 1359841 0 0
9 Locked QAM256 22 909000000 Hz 11.3 dBmV 40.0 dB 1364463 0 0
10 Locked QAM256 23 915000000 Hz 11.3 dBmV 40.1 dB 1367077 0 0
11 Locked QAM256 24 921000000 Hz 11.7 dBmV 40.0 dB 1371884 0 0
12 Locked QAM256 26 933000000 Hz 11.1 dBmV 39.9 dB 1375572 0 0
13 Locked QAM256 27 939000000 Hz 11.6 dBmV 39.9 dB 1378989 0 0
14 Locked QAM256 28 945000000 Hz 12.3 dBmV 40.0 dB 1382934 0 0
15 Locked QAM256 29 951000000 Hz 12.2 dBmV 39.8 dB 1386596 0 0
16 Locked QAM256 30 957000000 Hz 12.0 dBmV 39.6 dB 1390502 0 0
17 Locked QAM256 31 963000000 Hz 12.4 dBmV 39.7 dB 1393999 0 0
18 Locked QAM256 32 969000000 Hz 12.8 dBmV 39.9 dB 1397744 0 0
19 Locked QAM256 33 357000000 Hz 8.1 dBmV 39.8 dB 1401661 0 0
20 Locked QAM256 34 363000000 Hz 8.0 dBmV 40.1 dB 1405104 0 0
21 Locked QAM256 35 369000000 Hz 8.6 dBmV 40.3 dB 1407843 0 0
22 Locked QAM256 36 375000000 Hz 8.9 dBmV 40.4 dB 1412510 0 0
23 Locked QAM256 37 381000000 Hz 9.0 dBmV 40.5 dB 1410060 0 0
24 Locked QAM256 38 387000000 Hz 8.4 dBmV 40.1 dB 1413428 0 0
25 Locked QAM256 39 393000000 Hz 8.5 dBmV 40.2 dB 1417144 0 0
26 Locked QAM256 40 399000000 Hz 9.0 dBmV 40.5 dB 1420785 0 0
27 Locked QAM256 41 405000000 Hz 9.2 dBmV 40.4 dB 1424288 0 0
28 Locked QAM256 42 411000000 Hz 9.1 dBmV 40.4 dB 1428548 0 0
29 Locked QAM256 43 417000000 Hz 9.1 dBmV 40.4 dB 1432010 0 0
30 Locked QAM256 44 423000000 Hz 9.5 dBmV 40.7 dB 1435828 0 0
31 Locked QAM256 46 435000000 Hz 10.4 dBmV 40.9 dB 1436405 0 0
32 Locked QAM256 47 441000000 Hz 10.3 dBmV 41.0 dB 1438908 0 0

<tabindex=-1>Upstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power
1 Locked ATDMA 1 19300000 Hz 38.8 dBmV
2 Locked ATDMA 2 25800000 Hz 38.5 dBmV
3 Locked ATDMA 3 32200000 Hz 38.5 dBmV
4 Locked ATDMA 4 38600000 Hz 39.3 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
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, 2 159 300000000 Hz 10.5 dBmV 40.0 dB 1108 ~ 2987 498317 12274 0
2 Not Locked 0 0 0 Hz 6.0 dBmV 0.0 dB 0 ~ 4095 0 0 0

<tabindex=-1>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

1 Reply

  • SharonL's avatar
    SharonL
    Former Moderator
    Hello,
     
    I am sorry to hear you are experiencing slow speeds. This appears as if you may need someone to investigate your account personally. We would be able to assist you with this. Please reach us on Twitter at @CoxHelp, visit us on Facebook, or email us at cox.help@cox.com. Provide us the name on the account with the complete service address with a link to this thread so we can get started.
     
    Sharon
    Cox Support Forum Moderator