3 Messages
Netgear CM2000 Modem is reporting "Downstream power is poor (10.6dBmV). The recommended level is between -10dBmV to 10dBmV"
Hello,
My modem is reporting that I have a poor cable connection with the following text "Downstream power is poor (10.6dBmV). The recommended level is between -10dBmV to 10dBmV"
I've noticed I have not been getting anywhere close to the 2GB download speed Xfnity has said. I have the Netgear Nighthawk CM2000 modem that goes to my ASUS ROG GT-AX11000.
I've copy & pasted the log from my Modem indicating the Poor Level connection below:
Cable Diagnostic
Status: Poor
Action:
[Downstream Power Level]
Try these actions (Click the Refresh button after each step):
1) Make sure the coaxial cable is tightly connected.
2) Remove any unnecessary splitters.
3) Replace any required splitters.
4) Contact your service provider for troubleshooting help.
CM Status: Good
Downstream Status: Poor
Downstream Power Level: Poor
Downstream power is poor (10.6dBmV). The recommended level is between -10dBmV to 10dBmV.
Downstream SNR Level: Good
Upstream Status: Good
Upstream Power Level: Good
Current Time: Thu May 09 14:25:35 2024
Startup Procedure
Acquire Downstream Channel: 435000000 Hz Locked
Connectivity State: OK Operational
Boot State: OK Operational
Security: Enabled BPI+
IP Provisioning Mode: Honor MDD IPv6 only
Downstream Bonded Channels
Channel LockedStatus Modulation ChannelID Frequency Power SNR Correctables Uncorrectables
1 Locked QAM256 4 435000000 Hz 9.7 44.4 0 0
2 Locked QAM256 1 417000000 Hz 9.6 44.5 0 0
3 Locked QAM256 2 423000000 Hz 9.7 44.4 0 0
4 Locked QAM256 3 429000000 Hz 9.7 44.5 0 0
5 Locked QAM256 5 441000000 Hz 9.7 44.5 0 0
6 Locked QAM256 6 447000000 Hz 9.8 44.5 0 0
7 Locked QAM256 7 453000000 Hz 9.7 44.5 0 0
8 Locked QAM256 8 459000000 Hz 9.8 44.5 0 0
9 Locked QAM256 9 465000000 Hz 9.9 44.6 0 0
10 Locked QAM256 10 471000000 Hz 10 44.6 0 0
11 Locked QAM256 11 477000000 Hz 10 44.6 0 0
12 Locked QAM256 12 483000000 Hz 10.1 44.6 0 0
13 Locked QAM256 13 489000000 Hz 10.2 44.7 0 0
14 Locked QAM256 14 495000000 Hz 10.1 44.6 0 0
15 Locked QAM256 15 501000000 Hz 10.1 44.7 0 0
16 Locked QAM256 16 507000000 Hz 10.1 44.6 0 0
17 Locked QAM256 17 513000000 Hz 10.1 44.7 0 0
18 Locked QAM256 18 519000000 Hz 10.1 44.6 0 0
19 Locked QAM256 19 525000000 Hz 10.1 44.6 0 0
20 Locked QAM256 20 531000000 Hz 10.1 44.6 0 0
21 Locked QAM256 21 537000000 Hz 10.1 44.6 0 0
22 Locked QAM256 22 543000000 Hz 10.1 44.6 0 0
23 Locked QAM256 23 549000000 Hz 10.2 44.7 0 0
24 Locked QAM256 24 555000000 Hz 10.1 44.7 0 0
25 Locked QAM256 25 561000000 Hz 10.3 44.7 0 0
26 Locked QAM256 26 567000000 Hz 10.3 44.6 0 0
27 Locked QAM256 27 573000000 Hz 10.4 44.6 0 0
28 Locked QAM256 28 579000000 Hz 10.3 44.4 0 0
29 Locked QAM256 29 585000000 Hz 10.4 44.4 0 0
30 Locked QAM256 30 591000000 Hz 10.5 44.5 0 0
31 Locked QAM256 31 597000000 Hz 10.6 44.5 0 0
32 Locked QAM256 32 603000000 Hz 10.6 44.5 0 0
Upstream Bonded Channels
Channel LockedStatus ChannelType ChannelID SymbolRate Frequency Power
1 Locked ATDMA 2 5120 Ksym/sec 22800000 Hz 39.0 dBmV
2 Locked ATDMA 1 5120 Ksym/sec 16400000 Hz 39.3 dBmV
3 Locked ATDMA 3 5120 Ksym/sec 29200000 Hz 38.8 dBmV
4 Locked ATDMA 4 5120 Ksym/sec 35600000 Hz 38.5 dBmV
5 Not Locked Unknown 0 0 0 0.0
6 Not Locked Unknown 0 0 0 0.0
7 Not Locked Unknown 0 0 0 0.0
8 Not Locked Unknown 0 0 0 0.0
Downstream OFDM Channels
Channel LockedStatus ProfileID ChannelID Frequency Power SNR/MER ActiveSubcarrier Unerror Correctable Uncorrectable
1 Locked 0 ,1 ,2 ,3 193 957000000 Hz 13.18 dBmV 44.8 dB 148 ~ 3947 34559695 102571 0
2 Not Locked 0 0 0 Hz 0 dBmV 0 dB 0 ~ 4095 0 0 0
Upstream OFDMA Channels
Channel LockedStatus ProfileID ChannelID Frequency Power
1 Not Locked 0 0 0 Hz 0 dBmV
2 Not Locked 0 0 0 Hz 0 dBmV
Event Log
Time Priority Description
Thu May 09 13:38:26 2024 Critical (3) UCD invalid or channel unusable;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Thu May 09 13:38:17 2024 Critical (3) SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Thu May 09 13:38:17 2024 Notice (6) DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Thu May 09 13:38:11 2024 Notice (6) TLV-11 - unrecognized OID;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Thu May 09 13:38:01 2024 Notice (6) Honoring MDD; IP provisioning mode = IPv6
Thu May 09 13:37:59 2024 Critical (3) UCD invalid or channel unusable;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Thu May 09 13:37:53 2024 Warning (5) ToD request sent - No Response received;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv6
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Fri Apr 19 05:03:14 2024 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Wed Apr 17 06:51:34 2024 Critical (3) UCD invalid or channel unusable;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Wed Apr 17 06:51:08 2024 Critical (3) UCD invalid or channel unusable;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Wed Apr 17 06:49:52 2024 Critical (3) Resetting the cable modem due to docsDevResetNow
Tue Apr 16 04:19:21 2024 Critical (3) UCD invalid or channel unusable;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Apr 16 04:18:55 2024 Critical (3) UCD invalid or channel unusable;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Apr 09 03:05:37 2024 Critical (3) UCD invalid or channel unusable;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Apr 09 03:05:17 2024 Critical (3) UCD invalid or channel unusable;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Apr 09 03:04:19 2024 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Apr 09 03:00:47 2024 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Apr 09 03:00:47 2024 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Apr 09 03:00:43 2024 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Apr 09 03:00:43 2024 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Apr 09 03:00:42 2024 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Apr 09 03:00:42 2024 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Apr 09 03:00:04 2024 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Apr 09 02:59:58 2024 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Mar 05 12:13:41 2024 Critical (3) UCD invalid or channel unusable;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Mar 05 12:13:16 2024 Critical (3) UCD invalid or channel unusable;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Wed Feb 28 12:48:15 2024 Critical (3) UCD invalid or channel unusable;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Wed Feb 28 12:47:53 2024 Critical (3) UCD invalid or channel unusable;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Wed Feb 28 12:47:22 2024 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Wed Feb 28 12:47:17 2024 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Wed Feb 28 12:47:08 2024 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Wed Feb 28 12:46:58 2024 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Wed Feb 28 12:46:46 2024 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Wed Feb 28 03:26:08 2024 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Wed Feb 28 03:26:07 2024 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
XfinityDilary
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