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Re: Constant disconnects throughout the day.

New Poster

Re: Constant disconnects throughout the day.

I'm getting the exact same problem. losing connection all the time. Any idea?

08/07/2019 19:02 74010100 6 "CM-STATUS message sent. Event Type Code: 24; Chan ID: 37; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1.;CM-MAC=d4:3f:cb:e2:9a:1d;CMTS-MAC=00:01:5c:64:28:60;CM-QOS=1.1;CM-VER=3.1;"
08/07/2019 18:58 2436694061 5 "Dynamic Range Window violation"
08/07/2019 18:58 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=d4:3f:cb:e2:9a:1d;CMTS-MAC=00:01:5c:64:28:60;CM-QOS=1.1;CM-VER=3.1;"
08/07/2019 18:58 2436694061 5 "Dynamic Range Window violation"
08/07/2019 18:58 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=d4:3f:cb:e2:9a:1d;CMTS-MAC=00:01:5c:64:28:60;CM-QOS=1.1;CM-VER=3.1;"
08/07/2019 18:58 2436694061 5 "Dynamic Range Window violation"
08/07/2019 18:58 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=d4:3f:cb:e2:9a:1d;CMTS-MAC=00:01:5c:64:28:60;CM-QOS=1.1;CM-VER=3.1;"
08/07/2019 18:58 2436694061 5 "Dynamic Range Window violation"
08/07/2019 18:58 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=d4:3f:cb:e2:9a:1d;CMTS-MAC=00:01:5c:64:28:60;CM-QOS=1.1;CM-VER=3.1;"
08/07/2019 18:58 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=d4:3f:cb:e2:9a:1d;CMTS-MAC=00:01:5c:64:28:60;CM-QOS=1.1;CM-VER=3.1;"
08/07/2019 18:58 67061600 6 "DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1.;CM-MAC=d4:3f:cb:e2:9a:1d;CMTS-MAC=00:01:5c:64:28:60;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=d4:3f:cb:e2:9a:1d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
08/07/2019 14:16 82000400 3 "Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=d4:3f:cb:e2:9a:1d;CMTS-MAC=00:01:5c:64:28:60;CM-QOS=1.1;CM-VER=3.1;"
08/07/2019 14:16 82000200 3 "No Ranging Response received - T3 time-out;CM-MAC=d4:3f:cb:e2:9a:1d;CMTS-MAC=00:01:5c:64:28:60;CM-QOS=1.1;CM-VER=3.1;"
08/07/2019 14:16 82000400 3 "Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=d4:3f:cb:e2:9a:1d;CMTS-MAC=00:01:5c:64:28:60;CM-QOS=1.1;CM-VER=3.1;"
08/07/2019 14:16 82000200 3 "No Ranging Response received - T3 time-out;CM-MAC=d4:3f:cb:e2:9a:1d;CMTS-MAC=00:01:5c:64:28:60;CM-QOS=1.1;CM-VER=3.1;"
08/07/2019 14:16 82000400 3 "Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;C
6 Locked QAM256 483000000 Hz 3.1 dBmV 39.5 dB 31 161
7 Locked QAM256 489000000 Hz 4.0 dBmV 39.7 dB 45 169
8 Locked QAM256 495000000 Hz 3.0 dBmV 39.4 dB 43 150
9 Locked QAM256 507000000 Hz 2.8 dBmV 39.2 dB 39 141
10 Locked QAM256 513000000 Hz 1.8 dBmV 38.9 dB 31 176
11 Locked QAM256 519000000 Hz 2.7 dBmV 39.0 dB 38 116
12 Locked QAM256 525000000 Hz 2.0 dBmV 38.8 dB 19 95
13 Locked QAM256 531000000 Hz 1.9 dBmV 38.8 dB 42 129
14 Locked QAM256 537000000 Hz 2.5 dBmV 38.8 dB 34 137
15 Locked QAM256 543000000 Hz 1.3 dBmV 38.5 dB 45 108
16 Locked QAM256 549000000 Hz 1.2 dBmV 38.5 dB 23 72
17 Locked QAM256 555000000 Hz 2.1 dBmV 38.6 dB 51 116
18 Locked QAM256 561000000 Hz 1.5 dBmV 38.5 dB 36 115
19 Locked QAM256 567000000 Hz 1.6 dBmV 38.6 dB 13 108
20 Locked QAM256 573000000 Hz 1.7 dBmV 38.4 dB 25 93
21 Locked QAM256 579000000 Hz 0.6 dBmV 38.2 dB 57 113
22 Locked QAM256 585000000 Hz 1.8 dBmV 38.5 dB 60 127
23 Locked QAM256 591000000 Hz 1.7 dBmV 38.5 dB 38 116
24 Locked QAM256 597000000 Hz 1.1 dBmV 38.5 dB 23 106
25 Locked QAM256 603000000 Hz 1.6 dBmV 38.6 dB 41 114
26 Locked QAM256 609000000 Hz 0.6 dBmV 38.2 dB 28 132
27 Locked QAM256 615000000 Hz 0.4 dBmV 38.0 dB 21 108
28 Locked QAM256 621000000 Hz 0.9 dBmV 38.1 dB 34 107
29 Locked QAM256 627000000 Hz 0.4 dBmV 38.0 dB 22 118
30 Locked QAM256 633000000 Hz 0.6 dBmV 38.1 dB 24 112
31 Locked QAM256 639000000 Hz 0.6 dBmV 38.0 dB 32 93
32 Locked QAM256 645000000 Hz 0.3 dBmV 38.1 dB 22 105
33 Locked QAM256 651000000 Hz 0.4 dBmV 37.7 dB 26 89
34 Locked QAM256 657000000 Hz -0.1 dBmV 37.6 dB 25 131
35 Locked QAM256 663000000 Hz -0.5 dBmV 37.6 dB 20 110
36 Locked QAM256 669000000 Hz -0.2 dBmV 37.6 dB 28 89
37 Locked Other 722000000 Hz 0.9 dBmV 36.0 dB 157262802 0
Gold Problem Solver

Re: Constant disconnects throughout the day.

The "Dynamic Range Window" and "Commanded Power Exceeds" errors both suggest an intermittent connection to Comcast's network affecting the upstream channels. The downstream signals you posted look OK. We need to know:

If you want to troubleshoot this yourself, please see Connection Troubleshooting Tips. Problems with Internet service are often due to poor connections between your equipment and Comcast's network, usually in or near your home.

If you can't find the problem or you'd rather have Comcast do the troubleshooting, call them at the phone number on your bill or 1-800-Comcast, or or use one of the options on https://www.xfinity.com/support/contact-us/. If they can't fix the problem remotely, insist they send a tech out to identify the cause and correct it.

If the tech finds bad coax, splitters, amplifiers, or connections in your home (even if Comcast originally supplied them) you'll probably have to pay for the visit unless you have their Service Protection Plan (https://www.xfinity.com/support/articles/service-protection-plan, closed to customers that don't already have it). If the trouble is due to a faulty Comcast rental device, or anything outside your home, you shouldn't be charged.

New Poster

Re: Constant disconnects throughout the day.

Thanks for looking Bruce.

Arris SB8200, upstream channels

Channel Channel ID Lock Status US Channel Type Frequency Width Power
1 12 Locked SC-QAM Upstream 16600000 Hz 6400000 Hz 43.0 dBmV
2 9 Locked SC-QAM Upstream 35800000 Hz 6400000 Hz 42.0 dBmV
3 10 Locked SC-QAM Upstream 29400000 Hz 6400000 Hz 43.0 dBmV
4 11 Locked SC-QAM Upstream 23000000 Hz 6400000 Hz 42.0 dBmV


Gold Problem Solver

Re: Constant disconnects throughout the day.


@voodoo7 wrote: ... Arris SB8200, upstream channels ...

Those stats look OK as well. It would probably be best to arrange a Comcast tech visit to correct this.