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Not getting Gig speeds - how do these errors look on modem?

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Frequent Visitor

Not getting Gig speeds - how do these errors look on modem?

 Are any of these to be concerned about? Accessing this page behind the router. No splitters and power levels and SNR look in spec from what I can see. 

 

Date Time Event ID Event Level Description
04/24/2020 13:05 2436694061 5 "Dynamic Range Window violation"
04/24/2020 13:05 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=a0:f8:49:6b:45:61;CM-QOS=1.1;CM-VER=3.1;"
04/24/2020 09:49 2436694061 5 "Dynamic Range Window violation"
04/24/2020 09:49 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=a0:f8:49:6b:45:61;CM-QOS=1.1;CM-VER=3.1;"
04/24/2020 09:49 2436694061 5 "Dynamic Range Window violation"
04/24/2020 09:49 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=a0:f8:49:6b:45:61;CM-QOS=1.1;CM-VER=3.1;"
04/24/2020 09:49 84000500 3 "SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=a0:f8:49:6b:45:61;CM-QOS=1.1;CM-VER=3.1;"
04/24/2020 09:37 2436694061 5 "Dynamic Range Window violation"
04/24/2020 09:37 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=a0:f8:49:6b:45:61;CM-QOS=1.1;CM-VER=3.1;"
04/24/2020 09:37 2436694061 5 "Dynamic Range Window violation"
04/24/2020 09:37 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=a0:f8:49:6b:45:61;CM-QOS=1.1;CM-VER=3.1;"
01/01/1970 00:00 2436694066 6 "Honoring MDD; IP provisioning mode = IPv6"
01/01/1970 00:00 84000100 3 "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
04/22/2020 10:26 84000500 3 "SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=a0:f8:49:6b:45:61;CM-QOS=1.1;CM-VER=3.1;"
01/01/1970 00:00 84000100 3 "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
04/22/2020 09:53 2436694044 3 "Resetting the cable modem due to docsDevResetNow"
04/22/2020 09:36 84000500 3 "SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=a0:f8:49:6b:45:61;CM-QOS=1.1;CM-VER=3.1;"
01/01/1970 00:00 82000200 3 "No Ranging Response received - T3 time-out;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=a0:f8:49:6b:45:61;CM-QOS=1.1;CM-VER=3.1;"
01/01/1970 00:00 84000100 3 "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
04/22/2020 09:23 2436694044 3 "Resetting the cable modem due to docsDevResetNow"
04/21/2020 18:57 84000500 3 "SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=a0:f8:49:6b:45:61;CM-QOS=1.1;CM-VER=3.1;"
01/01/1970 00:00 84000100 3 "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
01/01/1970 00:00 82000200 3 "No Ranging Response received - T3 time-out;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=a0:f8:49:6b:45:61;CM-QOS=1.1;CM-VER=3.1;"
01/01/1970 00:00 84000100 3 "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
04/21/2020 13:06 84000500 3 "SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=a0:f8:49:6b:45:61;CM-QOS=1.1;CM-VER=3.1;"
01/01/1970 00:00 84000100 3 "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
04/20/2020 10:59 84000500 3 "SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=a0:f8:49:6b:45:61;CM-QOS=1.1;CM-VER=3.1;"
01/01/1970 00:00 84000100 3 "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
01/01/1970 00:01 82000200 3 "No Ranging Response received - T3 time-out;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=a0:f8:49:6b:45:61;CM-QOS=1.1;CM-VER=3.1;"
01/01/1970 00:01 84000100 3 "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
01/01/1970 00:01 84000100 3 "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
01/01/1970 00:00 84000100 3 "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=14:c0:3e:00:10:75;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
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Frequent Visitor

Re: Not getting Gig speeds - how do these errors look on modem?

Downstream Bonded Channels
Channel ID Lock Status Modulation Frequency Power SNR/MER Corrected Uncorrectables
21 Locked QAM256 579000000 Hz 6.2 dBmV 40.9 dB 35 0
1 Locked QAM256 453000000 Hz 5.8 dBmV 42.3 dB 1 0
2 Locked QAM256 459000000 Hz 5.8 dBmV 42.2 dB 0 0
3 Locked QAM256 465000000 Hz 5.9 dBmV 42.3 dB 0 0
4 Locked QAM256 471000000 Hz 6.0 dBmV 42.1 dB 2 0
5 Locked QAM256 477000000 Hz 6.1 dBmV 42.1 dB 3 0
6 Locked QAM256 483000000 Hz 6.1 dBmV 41.4 dB 4 0
7 Locked QAM256 489000000 Hz 6.1 dBmV 41.9 dB 2 0
8 Locked QAM256 495000000 Hz 6.2 dBmV 41.7 dB 3 0
9 Locked QAM256 507000000 Hz 6.1 dBmV 41.2 dB 10 0
10 Locked QAM256 513000000 Hz 6.0 dBmV 41.5 dB 6 0
11 Locked QAM256 519000000 Hz 6.1 dBmV 41.3 dB 6 0
12 Locked QAM256 525000000 Hz 6.0 dBmV 41.4 dB 16 0
13 Locked QAM256 531000000 Hz 6.0 dBmV 41.2 dB 18 0
14 Locked QAM256 537000000 Hz 6.1 dBmV 41.2 dB 13 0
15 Locked QAM256 543000000 Hz 6.1 dBmV 41.2 dB 17 0
16 Locked QAM256 549000000 Hz 6.0 dBmV 41.1 dB 18 0
17 Locked QAM256 555000000 Hz 6.1 dBmV 41.3 dB 28 0
18 Locked QAM256 561000000 Hz 6.2 dBmV 41.1 dB 25 0
19 Locked QAM256 567000000 Hz 6.1 dBmV 41.0 dB 31 0
20 Locked QAM256 573000000 Hz 6.2 dBmV 41.1 dB 40 0
22 Locked QAM256 585000000 Hz 6.4 dBmV 41.0 dB 40 0
23 Locked QAM256 591000000 Hz 6.4 dBmV 40.8 dB 50 0
24 Locked QAM256 597000000 Hz 6.6 dBmV 41.0 dB 39 0
25 Locked QAM256 603000000 Hz 6.5 dBmV 41.0 dB 71 0
26 Locked QAM256 609000000 Hz 6.1 dBmV 40.9 dB 67 0
27 Locked QAM256 615000000 Hz 6.0 dBmV 40.7 dB 94 0
28 Locked QAM256 621000000 Hz 6.3 dBmV 40.7 dB 84 0
29 Locked QAM256 627000000 Hz 6.4 dBmV 40.8 dB 121 0
30 Locked QAM256 633000000 Hz 6.6 dBmV 40.7 dB 103 0
31 Locked QAM256 639000000 Hz 6.9 dBmV 40.7 dB 113 0
32 Locked QAM256 645000000 Hz 7.0 dBmV 40.7 dB 141 0
159 Locked Other 702000000 Hz 8.8 dBmV 39.0 dB 3318883207 0


 

 
Upstream Bonded Channels
Channel Channel ID Lock Status US Channel Type Frequency Width Power
1 2 Locked SC-QAM Upstream 30100000 Hz 6400000 Hz 42.0 dBmV
2 1 Locked SC-QAM Upstream 36500000 Hz 6400000 Hz 42.0 dBmV
3 3 Locked SC-QAM Upstream 23700000 Hz 6400000 Hz 42.0 dBmV
4 4 Locked SC-QAM Upstream 17300000 Hz 6400000 Hz 42.0 dBmV


 

 

Current System Time: Fri Apr 24 19:59:29 2020

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Gold Problem Solver

Re: Not getting Gig speeds - how do these errors look on modem?

The power levels, error counts, and downstream SNR look OK, but the error log indicates a problem. You may need to have a Comcast tech take a look, if you can persuade to come out.

If you want to troubleshoot this yourself, please see Connection Troubleshooting Tips.