Visitor
•
3 Messages
High uncorrectables on CM3000
Hello, I recently got a CM3000 modem (from SB8200) to take advantage of the new upload speeds.
When I was looking at my modem, it seems like I have a very level of uncorrectables that seem to keep going up by the hour. I reset the modem a couple days ago, but the uncorrectables have racked up again.
Thoughts on how to proceed here?
I WFH so want to make sure that I have a stable internet connection at all times.
Thank you!
***
FYI: Modem was reset 2 days ago and the uptime is 2 days 10 hrs.
Cable Diagnostic
Status: Good
Action:
Your setup looks fine. If you can't access the internet, make sure you properly activated the modem. If modem has been activated and you still can't access the internet, contact your service provider for troubleshooting help.
If you can access the internet but has other internet issue, the Netgear Cable Knowledge Base can provide additional troubleshooting info.
CM Status: Good
Downstream Status: Good
Downstream Power Level: Good
Downstream SNR Level: Good
Upstream Status: Good
Upstream Power Level: Good
Current Time: Mon Sep 23 22:14:59 2024
Startup Procedure
Acquire Downstream Channel: 405000000 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 405000000 Hz 3.6 42.5 1 0
2 Locked QAM256 1 387000000 Hz 3.7 42.8 55964653 12390158
3 Locked QAM256 2 393000000 Hz 3.7 42.9 1119 605
4 Locked QAM256 3 399000000 Hz 3.7 43.7 1 0
5 Locked QAM256 5 411000000 Hz 3.6 43.9 1 0
6 Locked QAM256 6 417000000 Hz 3.7 44.5 1 0
7 Locked QAM256 7 423000000 Hz 3.6 44.4 1 0
8 Locked QAM256 8 429000000 Hz 3.5 44.4 0 0
9 Locked QAM256 9 435000000 Hz 3.4 44.4 1 0
10 Locked QAM256 10 441000000 Hz 3.5 44.4 2 0
11 Locked QAM256 11 447000000 Hz 3.7 44.5 1 0
12 Locked QAM256 12 453000000 Hz 3.7 44.5 2 0
13 Locked QAM256 13 459000000 Hz 3.6 44.4 1 0
14 Locked QAM256 14 465000000 Hz 3.6 44.4 1 0
15 Locked QAM256 15 471000000 Hz 3.7 44.5 1 0
16 Locked QAM256 16 477000000 Hz 3.7 44.5 1 0
17 Locked QAM256 17 483000000 Hz 3.5 44.4 2 0
18 Locked QAM256 18 489000000 Hz 3.3 44.2 1 0
19 Locked QAM256 19 495000000 Hz 3.4 44.3 2 0
20 Locked QAM256 20 501000000 Hz 3.3 44.3 1 0
21 Locked QAM256 21 507000000 Hz 3.2 44.2 0 0
22 Locked QAM256 22 513000000 Hz 3.2 44.3 1 0
23 Locked QAM256 23 519000000 Hz 3.2 44.3 1 0
24 Locked QAM256 24 525000000 Hz 3.2 44.2 1 0
25 Locked QAM256 25 531000000 Hz 3.2 44.2 0 0
26 Locked QAM256 26 537000000 Hz 3 44.1 6 0
27 Locked QAM256 27 543000000 Hz 2.8 43.9 0 0
28 Locked QAM256 28 549000000 Hz 2.7 43.8 0 0
29 Locked QAM256 29 555000000 Hz 2.9 43.9 0 0
30 Locked QAM256 30 561000000 Hz 2.8 43.9 6 0
31 Locked QAM256 31 567000000 Hz 3 44 10 0
32 Locked QAM256 32 573000000 Hz 3.2 44.1 15 0
Upstream Bonded Channels
Channel LockedStatus ChannelType ChannelID SymbolRate Frequency Power
1 Locked ATDMA 19 5120 Ksym/sec 29200000 Hz 43.8 dBmV
2 Locked ATDMA 18 5120 Ksym/sec 22800000 Hz 43.5 dBmV
3 Locked ATDMA 17 5120 Ksym/sec 16400000 Hz 43.3 dBmV
4 Locked ATDMA 20 5120 Ksym/sec 35600000 Hz 43.8 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 722000000 Hz 2.68 dBmV 43.1 dB 448 ~ 3647 1188974986 779371581 0
2 Locked 0 ,1 ,2 ,3 194 957000000 Hz 0.78 dBmV 41.5 dB 148 ~ 3947 1208894604 999780287 2
Upstream OFDMA Channels
Channel LockedStatus ProfileID ChannelID Frequency Power
1 Locked 12 ,13 43 36200000 Hz 41.3 dBmV
2 Not Locked 0 0 0 Hz 0 dBmV
Event Log
Time Priority Description
Mon Sep 23 06:36:23 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;
Sun Sep 22 16:34:51 2024 Notice (6) CM-STATUS message sent. Event Type Code: 24; Chan ID: 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=[Edited: “Personal Information”];CMTS-MAC=[Edited: “Personal Information”];CM-QOS=1.1;CM-VER=3.1;
Sun Sep 22 16:30:52 2024 Notice (6) CM-STATUS message sent. Event Type Code: 22; Chan ID: 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: “Personal Information”];CMTS-MAC=[Edited: “Personal Information”];CM-QOS=1.1;CM-VER=3.1;
Sun Sep 22 16:29:56 2024 Notice (6) CM-STATUS message sent. Event Type Code: 23; Chan ID: 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: “Personal Information”];CMTS-MAC=[Edited: “Personal Information”];CM-QOS=1.1;CM-VER=3.1;
Sun Sep 22 16:28:49 2024 Notice (6) CM-STATUS message sent. Event Type Code: 24; Chan ID: 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2.;CM-MAC=[Edited: “Personal Information”];CMTS-MAC=[Edited: “Personal Information”];CM-QOS=1.1;CM-VER=3.1;
Sun Sep 22 16:27:51 2024 Notice (6) CM-STATUS message sent. Event Type Code: 4; Chan ID: 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: “Personal Information”];CMTS-MAC=[Edited: “Personal Information”];CM-QOS=1.1;CM-VER=3.1;
Sun Sep 22 16:27:28 2024 Notice (6) CM-STATUS message sent. Event Type Code: 16; Chan ID: 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=[Edited: “Personal Information”];CMTS-MAC=[Edited: “Personal Information”];CM-QOS=1.1;CM-VER=3.1;
Sun Sep 22 16:26:44 2024 Warning (5) Dynamic Range Window violation
Sun Sep 22 16:26:44 2024 Warning (5) RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=[Edited: “Personal Information”];CMTS-MAC=[Edited: “Personal Information”];CM-QOS=1.1;CM-VER=3.1;
Sun Sep 22 16:26:44 2024 Warning (5) Dynamic Range Window violation
Sun Sep 22 16:26:44 2024 Warning (5) RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=[Edited: “Personal Information”];CMTS-MAC=[Edited: “Personal Information”];CM-QOS=1.1;CM-VER=3.1;
Sun Sep 22 16:26:41 2024 Notice (6) CM-STATUS message sent. Event Type Code: 1; Chan ID: 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: “Personal Information”];CMTS-MAC=[Edited: “Personal Information”];CM-QOS=1.1;CM-VER=3.1;
Sun Sep 22 16:26:33 2024 Warning (5) MDD message timeout;CM-MAC=[Edited: “Personal Information”];CMTS-MAC=[Edited: “Personal Information”];CM-QOS=1.1;CM-VER=3.1;
Sun Sep 22 16:24:04 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;
Sat Sep 21 11:10:54 2024 Notice (6) DS profile assignment change. DS Chan ID: 33; 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;
Sat Sep 21 11:10:52 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;
Sat Sep 21 11:10:47 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;
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 Sep 20 19:39:02 2024 Critical (3) Resetting the cable modem due to docsDevResetNow
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 Sep 20 19:33:30 2024 Critical (3) Resetting the cable modem due to docsDevResetNow
Fri Sep 20 06:36:39 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;
Thu Sep 19 18:10:34 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;
Thu Sep 19 06:35:58 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 Sep 18 06:36:11 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;
Tue Sep 17 06:36:26 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;
Mon Sep 16 17:14:39 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;
Sat Sep 14 15:41:05 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;
Sat Sep 14 15:41:05 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;
Sat Sep 14 15:41:02 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;
Sat Sep 14 06:35:40 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;
Fri Sep 13 18:40:37 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;
Fri Sep 13 06:35:54 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;
Thu Sep 12 06:35:52 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;
Tue Sep 10 16:58:45 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;
Sun Sep 08 06:34:41 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;
Sat Sep 07 17:44:10 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;
Sat Sep 07 09:26:11 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;
Fri Sep 06 06:34:11 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;
ML6
Visitor
•
3 Messages
1 month ago
Update after 12 hrs. The Uncorrectables on Channel 1 are at 65M (from 21M last night).
Downstream Bonded Channels
Channel LockedStatus Modulation ChannelID Frequency Power SNR Correctables Uncorrectables
1 Locked QAM256 4 405000000 Hz 3.6 40.9 11 0
2 Locked QAM256 1 387000000 Hz 3.7 37.5 69579976 65815623
3 Locked QAM256 2 393000000 Hz 3.6 38.8 2737 774
4 Locked QAM256 3 399000000 Hz 3.6 41.1 1604 7
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XfinityEmilyB
Official Employee
•
1.7K Messages
1 month ago
@ML6 Thank you for reaching out so we can make sure you have a reliable internet connection for working from home. We're a team of experts dedicated to addressing all your questions and concerns and we'll work alongside you to advocate for the best possible resolution :).
Let's troubleshoot to narrow down the root cause of the signal issue. Can you tighten each end of the coax connection by hand to make sure they are snug? Please check the connection at the back of the modem as well as the connection at your coax wall plate. Is there a splitter between the coax outlet and the modem?
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