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NeroNoctis's avatar
NeroNoctis
New Contributor
4 years ago

High upstream and too many t3/t4 errors.

I've been having bad internet connectivity the last couple of months and I think it's because the upstream is way too high(or so I read).I have a Netgear cm1000 that i recently bought and installed a...
NeroNoctis's avatar
NeroNoctis
New Contributor
4 years ago

So I called Cox and they sent a contractor that said the wiring and connection are good, he proceeded to put a DB Attenuator behind my modem. It's changed my downstream but now my upstream and connection seems to be worse.

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
Procedure Status Comment
Acquire Downstream Channel 951000000 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 29 951000000 Hz 3.0 dBmV 44.3 dB 34904122 0 0
2 Locked QAM256 1 783000000 Hz 4.0 dBmV 44.7 dB 32342713 0 0
3 Locked QAM256 2 789000000 Hz 4.1 dBmV 44.7 dB 32347068 0 0
4 Locked QAM256 3 795000000 Hz 3.8 dBmV 44.4 dB 32350078 0 0
5 Locked QAM256 4 801000000 Hz 3.8 dBmV 44.6 dB 32353028 0 0
6 Locked QAM256 5 807000000 Hz 4.0 dBmV 44.6 dB 32357179 0 0
7 Locked QAM256 6 813000000 Hz 4.0 dBmV 44.6 dB 32360329 0 0
8 Locked QAM256 7 819000000 Hz 3.8 dBmV 44.5 dB 32364240 0 0
9 Locked QAM256 8 825000000 Hz 3.4 dBmV 44.4 dB 32366216 1501 431
10 Locked QAM256 9 831000000 Hz 3.4 dBmV 44.3 dB 32371696 459 44
11 Locked QAM256 10 837000000 Hz 3.4 dBmV 44.5 dB 32375377 0 0
12 Locked QAM256 11 843000000 Hz 3.6 dBmV 44.5 dB 32379198 0 0
13 Locked QAM256 12 849000000 Hz 3.5 dBmV 44.6 dB 32382613 0 0
14 Locked QAM256 13 855000000 Hz 3.2 dBmV 44.0 dB 32386898 0 0
15 Locked QAM256 14 861000000 Hz 3.0 dBmV 44.2 dB 32390203 0 0
16 Locked QAM256 15 867000000 Hz 3.1 dBmV 44.3 dB 32394492 0 0
17 Locked QAM256 16 873000000 Hz 3.1 dBmV 43.5 dB 32397712 0 0
18 Locked QAM256 17 879000000 Hz 3.2 dBmV 43.8 dB 32401736 0 0
19 Locked QAM256 18 885000000 Hz 3.2 dBmV 44.1 dB 32405062 0 0
20 Locked QAM256 19 891000000 Hz 3.3 dBmV 44.3 dB 32409189 0 0
21 Locked QAM256 20 897000000 Hz 3.3 dBmV 44.5 dB 32412899 0 0
22 Locked QAM256 21 903000000 Hz 3.4 dBmV 44.4 dB 32416192 0 0
23 Locked QAM256 22 909000000 Hz 3.2 dBmV 44.5 dB 32420510 0 0
24 Locked QAM256 23 915000000 Hz 3.2 dBmV 44.5 dB 32424064 0 0
25 Locked QAM256 24 921000000 Hz 3.6 dBmV 44.5 dB 32427258 0 0
26 Locked QAM256 25 927000000 Hz 3.4 dBmV 44.3 dB 32430492 0 0
27 Locked QAM256 26 933000000 Hz 3.7 dBmV 44.6 dB 32434757 0 0
28 Locked QAM256 27 939000000 Hz 3.2 dBmV 43.8 dB 32438348 0 0
29 Locked QAM256 28 945000000 Hz 3.2 dBmV 44.4 dB 32441847 0 0
30 Locked QAM256 30 957000000 Hz 3.0 dBmV 44.4 dB 32445703 0 0
31 Locked QAM256 31 963000000 Hz 2.6 dBmV 44.1 dB 32446533 0 0
32 Locked QAM256 32 969000000 Hz 2.2 dBmV 44.1 dB 32449187 0 0
<tabindex=-1>Upstream Bonded Channels (Partial Service)
Channel Lock Status Modulation Channel ID Frequency Power
1 Locked ATDMA 1 36300000 Hz 58.8 dBmV
2 Locked ATDMA 2 29900000 Hz 58.8 dBmV
3 Locked ATDMA 3 23500000 Hz 58.8 dBmV
4 Locked ATDMA 4 16900000 Hz 58.8 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, 1 159 300000000 Hz -4.6 dBmV 38.3 dB 1108 ~ 2987 27269730 551177 10
2 Not Locked 0 0 0 Hz -9.4 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
  • JonathanJ's avatar
    JonathanJ
    Former Moderator
    4 years ago
    @NeroNoctis

    You can follow WiderMouthOpen suggestion. If you haven't already scheduled another tech visit. Please send us an email and a URL to this thread, also include your full name and address. Send your information to cox.help@cox.com.


    Jonathan J
    Cox Moderator