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user_seaue8
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Thursday, February 20th, 2025

Low Downstream Power (Netgear Nighthawk CM2500 )

Hi all,

I'm kind of new to this. I just got my own equipment and my modem is giving me a "Cable Connection Status Poor" message. It says I have low downstream power. Below is the text--any help would be greatly appreciated. I don't know what to do with the information.

Acquire Downstream Channel 651000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Security Enabled BPI+
IP Provisioning Mode Honor MDD IPv6 only
 
Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables
1 Locked QAM256 41 651000000 Hz -10.2 dBmV 37.1 dB 0 0
2 Locked QAM256 13 471000000 Hz -7.7 dBmV 38.1 dB 0 0
3 Locked QAM256 14 477000000 Hz -7.9 dBmV 38.1 dB 0 0
4 Locked QAM256 15 483000000 Hz -7.7 dBmV 38.1 dB 0 0
5 Locked QAM256 16 489000000 Hz -7.8 dBmV 38.1 dB 0 0
6 Locked QAM256 17 495000000 Hz -8.1 dBmV 37.9 dB 0 0
7 Locked QAM256 18 507000000 Hz -8.6 dBmV 37.5 dB 0 0
8 Locked QAM256 19 513000000 Hz -8.9 dBmV 37.5 dB 0 0
9 Locked QAM256 20 519000000 Hz -8.7 dBmV 37.6 dB 0 0
10 Locked QAM256 21 525000000 Hz -9.4 dBmV 37.1 dB 0 0
11 Locked QAM256 22 531000000 Hz -9.2 dBmV 37.3 dB 0 0
12 Locked QAM256 23 543000000 Hz -9.4 dBmV 36.9 dB 0 0
13 Locked QAM256 24 549000000 Hz -9.4 dBmV 37.2 dB 0 0
14 Locked QAM256 25 555000000 Hz -10.0 dBmV 36.8 dB 0 0
15 Locked QAM256 26 561000000 Hz -10.2 dBmV 36.7 dB 0 0
16 Locked QAM256 27 567000000 Hz -9.7 dBmV 37.0 dB 0 0
17 Locked QAM256 28 573000000 Hz -9.9 dBmV 37.0 dB 0 0
18 Locked QAM256 29 579000000 Hz -9.6 dBmV 37.2 dB 0 0
19 Locked QAM256 30 585000000 Hz -9.7 dBmV 37.1 dB 0 0
20 Locked QAM256 31 591000000 Hz -10.1 dBmV 36.9 dB 0 0
21 Locked QAM256 32 597000000 Hz -9.8 dBmV 37.1 dB 0 0
22 Locked QAM256 33 603000000 Hz -10.5 dBmV 36.8 dB 0 0
23 Locked QAM256 34 609000000 Hz -10.2 dBmV 37.0 dB 0 0
24 Locked QAM256 35 615000000 Hz -10.0 dBmV 37.1 dB 0 0
25 Locked QAM256 36 621000000 Hz -10.0 dBmV 37.1 dB 0 0
26 Locked QAM256 37 627000000 Hz -9.9 dBmV 37.2 dB 0 0
27 Locked QAM256 38 633000000 Hz -10.3 dBmV 36.9 dB 0 0
28 Locked QAM256 39 639000000 Hz -10.3 dBmV 37.0 dB 0 0
29 Locked QAM256 40 645000000 Hz -9.9 dBmV 37.3 dB 0 0
30 Locked QAM256 42 657000000 Hz -9.7 dBmV 37.4 dB 0 0
31 Locked QAM256 43 663000000 Hz -10.0 dBmV 37.2 dB 0 0
32 Locked QAM256 44 669000000 Hz -9.9 dBmV 37.3 dB 0 0
 
Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 5 5120 Ksym/sec 35600000 Hz 47.5 dBmV
2 Locked ATDMA 1 2560 Ksym/sec 10400000 Hz 47.5 dBmV
3 Locked ATDMA 2 5120 Ksym/sec 16400000 Hz 46.0 dBmV
4 Locked ATDMA 3 5120 Ksym/sec 22800000 Hz 47.0 dBmV
5 Locked ATDMA 4 5120 Ksym/sec 29200000 Hz 47.0 dBmV
6 Locked ATDMA 6 2560 Ksym/sec 40400000 Hz 48.5 dBmV
7 Not Locked Unknown 0 0 0 0.0 dBmV
8 Not Locked Unknown 0 0 0 0.0 dBmV
 
Downstream OFDM Channels
Channel Lock Status Profile ID Channel ID Frequency Power SNR / MER Active Subcarrier
Number Range		 Unerrored
Codewords		 Correctable
Codewords		 Uncorrectable
Codewords
1 Locked 0 ,1 ,2 ,3 159 722000000 Hz -9.32 dBmV 37.2 dB 946 ~ 3149 291802148 148015389 0
2 Not Locked 0 0 0 Hz 0 dBmV 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

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6 months ago

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