Regular Visitor
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4 Messages
Cable Modem Connection Info
I have a Netgear CM1150V cable modem. Below is the current status for the cable modem after being up for 24 days.
Are the values for the Correctables and Uncorrectables normal?
Also, are the power level and SNR values within a good range?
Thanks
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. | |
|
Startup Procedure
Procedure | Status | Comment |
Acquire Downstream Channel | 621000000 Hz | Locked |
Connectivity State | OK | Operational |
Boot State | OK | Operational |
Security | Enabled | BPI+ |
IP Provisioning Mode | Honor MDD | honorMdd(4) |
Downstream Bonded Channels
Channel | Lock Status | Modulation | Channel ID | Frequency | Power | SNR | Correctables | Uncorrectables |
1 | Locked | QAM256 | 12 | 621000000 Hz | -6.5 dBmV | 43.7 dB | 0 | 0 |
2 | Locked | QAM256 | 1 | 555000000 Hz | -6.2 dBmV | 44.1 dB | 0 | 0 |
3 | Locked | QAM256 | 2 | 561000000 Hz | -6.2 dBmV | 44.2 dB | 0 | 0 |
4 | Locked | QAM256 | 3 | 567000000 Hz | -6.4 dBmV | 44 dB | 0 | 0 |
5 | Locked | QAM256 | 4 | 573000000 Hz | -6.3 dBmV | 44 dB | 0 | 0 |
6 | Locked | QAM256 | 5 | 579000000 Hz | -6.4 dBmV | 43.8 dB | 0 | 0 |
7 | Locked | QAM256 | 6 | 585000000 Hz | -6.3 dBmV | 44 dB | 0 | 0 |
8 | Locked | QAM256 | 7 | 591000000 Hz | -6.3 dBmV | 43.9 dB | 10 | 0 |
9 | Locked | QAM256 | 8 | 597000000 Hz | -6.3 dBmV | 43.9 dB | 15 | 0 |
10 | Locked | QAM256 | 9 | 603000000 Hz | -6.4 dBmV | 43.9 dB | 9 | 0 |
11 | Locked | QAM256 | 10 | 609000000 Hz | -6.4 dBmV | 43.8 dB | 0 | 0 |
12 | Locked | QAM256 | 11 | 615000000 Hz | -6.4 dBmV | 43.8 dB | 0 | 0 |
13 | Locked | QAM256 | 13 | 627000000 Hz | -6.4 dBmV | 43.8 dB | 0 | 0 |
14 | Locked | QAM256 | 14 | 633000000 Hz | -6.5 dBmV | 43.7 dB | 0 | 0 |
15 | Locked | QAM256 | 15 | 639000000 Hz | -6.3 dBmV | 43.8 dB | 0 | 0 |
16 | Locked | QAM256 | 16 | 645000000 Hz | -6.3 dBmV | 43.8 dB | 0 | 0 |
17 | Locked | QAM256 | 17 | 651000000 Hz | -6.2 dBmV | 43.8 dB | 0 | 0 |
18 | Locked | QAM256 | 18 | 657000000 Hz | -6.3 dBmV | 43.7 dB | 0 | 0 |
19 | Locked | QAM256 | 19 | 663000000 Hz | -6.3 dBmV | 43.7 dB | 0 | 0 |
20 | Locked | QAM256 | 20 | 669000000 Hz | -6.3 dBmV | 43.6 dB | 251 | 544 |
21 | Locked | QAM256 | 21 | 675000000 Hz | -6.5 dBmV | 42.8 dB | 606 | 873 |
22 | Locked | QAM256 | 22 | 681000000 Hz | -6.3 dBmV | 43.7 dB | 0 | 0 |
23 | Locked | QAM256 | 23 | 687000000 Hz | -6.3 dBmV | 43.6 dB | 0 | 0 |
24 | Locked | QAM256 | 24 | 693000000 Hz | -6.2 dBmV | 43.7 dB | 0 | 0 |
25 | Locked | QAM256 | 25 | 699000000 Hz | -6.3 dBmV | 43.6 dB | 3493 | 2244 |
26 | Locked | QAM256 | 26 | 705000000 Hz | -6.3 dBmV | 43.6 dB | 258667 | 134319 |
27 | Locked | QAM256 | 27 | 711000000 Hz | -6.4 dBmV | 43.5 dB | 301137 | 218338 |
28 | Locked | QAM256 | 28 | 717000000 Hz | -6.4 dBmV | 43.5 dB | 115721 | 72120 |
29 | Locked | QAM256 | 29 | 723000000 Hz | -6.3 dBmV | 43.5 dB | 25 | 0 |
30 | Locked | QAM256 | 30 | 729000000 Hz | -6.4 dBmV | 43.5 dB | 25 | 0 |
31 | Locked | QAM256 | 31 | 735000000 Hz | -6.1 dBmV | 43.6 dB | 19 | 0 |
32 | Locked | QAM256 | 32 | 741000000 Hz | -6.3 dBmV | 43.6 dB | 13 | 0 |
Upstream Bonded Channels
Channel | Lock Status | US Channel Type | Channel ID | Symbol Rate | Frequency | Power |
1 | Locked | ATDMA | 1 | 5120 Ksym/sec | 38800000 Hz | 44.3 dBmV |
2 | Locked | ATDMA | 2 | 5120 Ksym/sec | 32400000 Hz | 43.5 dBmV |
3 | Locked | ATDMA | 3 | 5120 Ksym/sec | 26000000 Hz | 43.3 dBmV |
4 | Locked | ATDMA | 4 | 5120 Ksym/sec | 19600000 Hz | 42.8 dBmV |
5 | Not Locked | Unknown | 0 | 0 Ksym/sec | 0 Hz | 0.0 dBmV |
6 | Not Locked | Unknown | 0 | 0 Ksym/sec | 0 Hz | 0.0 dBmV |
7 | Not Locked | Unknown | 0 | 0 Ksym/sec | 0 Hz | 0.0 dBmV |
8 | Not Locked | Unknown | 0 | 0 Ksym/sec | 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 | 193 | 957000000 Hz | -7.3 dBmV | 41.5 dB | 1108 ~ 2987 | 9070926090 | 311378 | 0 |
2 | Not Locked | 0 | 0 | 0 Hz | 0 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 | 0 | 0 | 0 Hz | 0 dBmV |
2 | Not Locked | 0 | 0 | 0 Hz | 0 dBmV |
Current System Time:Fri Oct 30 15:17:15 2020System Up Time:24 days 09:00:09
EG
Expert
•
111.1K Messages
5 years ago
The downstream power levels are on the low / weak side but are still in spec. And there may be a large number of uncorrectable bit errors on some of the channels depending on the total uptime of the modem since the last re-boot / power cycle operation. The upstream power is fine.
Are you actually experiencing any connectivity problems ? If not, then don't sweat it.
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DexLI
Regular Visitor
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4 Messages
5 years ago
Thanks for the info. I was just curious about the information for the cable modem. Any reason why the errors only occur on some channels?
As for issues, I do see issues from time to time. I am responsible for a Citrix environment which can be sensitive to network latency changes. During the day, I will see the ICA latency between home and work spike. I run continuous pings to my home router and www.microsoft.com to see if there are changes in response times. This helps me determine if the latency change is wifi related, internet related or other.
I do see times where the local ping is constant, but the Microsoft response drops. Obviously, the internet is the internet and response times will vary. I just try to do my due diligence to make sure everything is good on my home network.
I appreciate checking the cable modem stats.
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EG
Expert
•
111.1K Messages
5 years ago
Because spurious noise ingress into the closed system can occur at specific frequencies and are not necessarily global to the system bandwidth.
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