6 Messages
Dynamic Range Window Violations and Frequent Timeouts
I am having frequent internet outages in my whole house, Arris SB8200 modem logs below. Dynamic Range Window violations seem to be the primary culprit, with additional time out errors and events. Issue is most apparent in constant connection service like gaming, but is also obvious when streaming or browsing if the outage occurs when something is buffering or loading.
First, I tried a new modem and that had zero effect on the issue. Back to the Arris SB8200 and I could at least remain connected.
Then, I had an Xfinity service technician come out to inspect the lines through the house and to the street and the only thing resolved from that visit was a MoCA filter added to my house's line. This resolved my issue for a few days but now it has come back worse than ever. What used to be a short 2-3 minute drop in connection has become a complete failure and causes my modem to reset itself.
I have read through several similar issues on this forum and it seems like I need a watcher put on my service to accurately detect the power level issues, or something needs to change upstream because I'm out of things to fix/swap here.
Log messages from the most recent total disconnect:
Date Time |
Event ID |
Event Level |
Description |
08/19/2024 13:01 |
2436694061 |
5 |
"Dynamic Range Window violation" |
08/19/2024 13:01 |
82001100 |
5 |
"RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 13:01 |
73050400 |
5 |
"REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 13:01 |
67061600 |
6 |
"DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 13:01 |
2436694066 |
6 |
"Honoring MDD; IP provisioning mode = IPv6" |
08/19/2024 13:00 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 13:00 |
84020200 |
5 |
"Lost MDD Timeout;CM-MAC=*REDACTED*;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 13:00 |
84000100 |
3 |
"SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=*REDACTED*;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 13:00 |
82000700 |
3 |
"Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 13:00 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 13:00 |
82000400 |
3 |
"Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 13:00 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 13:00 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 5 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:59 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:59 |
82000400 |
3 |
"Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:59 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 5 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:59 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:59 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 5 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:59 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:59 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 5 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:59 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:59 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 5 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:59 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:59 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 5 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:59 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:58 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 5 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:58 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:58 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 5 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:58 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:58 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:58 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:58 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 5 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:58 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:58 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 5 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:58 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:58 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 5 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:58 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:58 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 5 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:57 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:57 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 5 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:57 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:57 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 5 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:57 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:57 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:57 |
82000200 |
3 |
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:57 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 5 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:57 |
82000400 |
3 |
"Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:57 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 6; Chan ID: 6; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:57 |
82000400 |
3 |
"Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
08/19/2024 12:57 |
74010100 |
6 |
"CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;" |
And here is the status window captured at the same timeframe:
Startup Procedure |
||
Procedure |
Status |
Comment |
Acquire Downstream Channel |
471000000 Hz |
Locked |
Connectivity State |
OK |
Operational |
Boot State |
OK |
Operational |
Configuration File |
OK |
|
Security |
Enabled |
BPI+ |
DOCSIS Network Access Enabled |
Allowed |
|
Downstream Bonded Channels |
|||||||
Channel ID |
Lock Status |
Modulation |
Frequency |
Power |
SNR/MER |
Corrected |
Uncorrectables |
13 |
Locked |
QAM256 |
471000000 Hz |
-4.6 dBmV |
39.5 dB |
9018 |
5523 |
1 |
Locked |
QAM256 |
399000000 Hz |
-4.7 dBmV |
39.4 dB |
27744 |
10838 |
2 |
Locked |
QAM256 |
405000000 Hz |
-4.5 dBmV |
39.3 dB |
31505 |
11719 |
3 |
Locked |
QAM256 |
411000000 Hz |
-4.8 dBmV |
39.3 dB |
24292 |
10883 |
4 |
Locked |
QAM256 |
417000000 Hz |
-4.7 dBmV |
39.4 dB |
25522 |
10735 |
5 |
Locked |
QAM256 |
423000000 Hz |
-4.4 dBmV |
39.5 dB |
36411 |
11447 |
6 |
Locked |
QAM256 |
429000000 Hz |
-4.6 dBmV |
39.4 dB |
18630 |
9345 |
7 |
Locked |
QAM256 |
435000000 Hz |
-4.5 dBmV |
39.6 dB |
18605 |
8827 |
8 |
Locked |
QAM256 |
441000000 Hz |
-4.6 dBmV |
39.5 dB |
20532 |
8878 |
9 |
Locked |
QAM256 |
447000000 Hz |
-4.8 dBmV |
39.4 dB |
17582 |
8708 |
10 |
Locked |
QAM256 |
453000000 Hz |
-4.5 dBmV |
39.5 dB |
26866 |
9420 |
11 |
Locked |
QAM256 |
459000000 Hz |
-4.7 dBmV |
39.5 dB |
16169 |
7607 |
12 |
Locked |
QAM256 |
465000000 Hz |
-4.7 dBmV |
39.5 dB |
14514 |
7666 |
14 |
Locked |
QAM256 |
477000000 Hz |
-4.7 dBmV |
39.5 dB |
16296 |
7478 |
15 |
Locked |
QAM256 |
483000000 Hz |
-4.7 dBmV |
39.6 dB |
12570 |
6925 |
16 |
Locked |
QAM256 |
489000000 Hz |
-4.7 dBmV |
39.5 dB |
14947 |
6936 |
17 |
Locked |
QAM256 |
495000000 Hz |
-4.8 dBmV |
39.5 dB |
12865 |
6632 |
18 |
Locked |
QAM256 |
507000000 Hz |
-4.6 dBmV |
39.0 dB |
14796 |
7293 |
19 |
Locked |
QAM256 |
513000000 Hz |
-4.6 dBmV |
39.7 dB |
11834 |
6269 |
20 |
Locked |
QAM256 |
519000000 Hz |
-4.6 dBmV |
39.7 dB |
11596 |
6278 |
21 |
Locked |
QAM256 |
525000000 Hz |
-4.6 dBmV |
39.6 dB |
11308 |
6073 |
22 |
Locked |
QAM256 |
531000000 Hz |
-4.6 dBmV |
39.6 dB |
11259 |
6169 |
23 |
Locked |
QAM256 |
543000000 Hz |
-4.6 dBmV |
39.0 dB |
10843 |
6053 |
24 |
Locked |
QAM256 |
549000000 Hz |
-4.7 dBmV |
39.6 dB |
11106 |
6747 |
25 |
Locked |
QAM256 |
555000000 Hz |
-4.4 dBmV |
39.7 dB |
9927 |
5402 |
26 |
Locked |
QAM256 |
561000000 Hz |
-4.7 dBmV |
39.3 dB |
9238 |
5258 |
27 |
Locked |
QAM256 |
567000000 Hz |
-4.8 dBmV |
39.6 dB |
9961 |
5322 |
28 |
Locked |
QAM256 |
573000000 Hz |
-4.5 dBmV |
39.8 dB |
9186 |
4943 |
29 |
Locked |
QAM256 |
579000000 Hz |
-4.9 dBmV |
39.6 dB |
8820 |
4855 |
30 |
Locked |
QAM256 |
585000000 Hz |
-4.8 dBmV |
39.6 dB |
8894 |
5010 |
31 |
Locked |
QAM256 |
591000000 Hz |
-4.6 dBmV |
39.7 dB |
8653 |
4988 |
32 |
Locked |
QAM256 |
597000000 Hz |
-4.9 dBmV |
39.5 dB |
8153 |
4578 |
159 |
Locked |
Other |
722000000 Hz |
-3.5 dBmV |
38.5 dB |
559199824 |
3493 |
Upstream Bonded Channels |
||||||
Channel |
Channel ID |
Lock Status |
US Channel Type |
Frequency |
Width |
Power |
1 |
1 |
Locked |
SC-QAM Upstream |
10400000 Hz |
3200000 Hz |
44.0 dBmV |
2 |
2 |
Locked |
SC-QAM Upstream |
16400000 Hz |
6400000 Hz |
44.0 dBmV |
3 |
3 |
Locked |
SC-QAM Upstream |
22800000 Hz |
6400000 Hz |
45.0 dBmV |
4 |
4 |
Locked |
SC-QAM Upstream |
29200000 Hz |
6400000 Hz |
45.0 dBmV |
5 |
5 |
Locked |
SC-QAM Upstream |
35600000 Hz |
6400000 Hz |
44.0 dBmV |
6 |
6 |
Locked |
SC-QAM Upstream |
40400000 Hz |
3200000 Hz |
44.0 dBmV |
Current System Time: Mon Aug 19 13:03:44 2024
HunterKH
6 Messages
3 months ago
Hot off the presses, I'm still having this issue and it continues to worsen and be disruptive:
Top of Form
Date Time
Event ID
Event Level
Description
08/21/2024 08:49
2436694061
5
"Dynamic Range Window violation"
08/21/2024 08:49
82001100
5
"RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 08:49
2436694061
5
"Dynamic Range Window violation"
08/21/2024 08:49
82001100
5
"RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 08:49
73050400
5
"REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 08:49
67061600
6
"DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;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=*REDACTED*;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 08:48
2436694044
3
"Resetting the cable modem due to docsDevResetNow"
08/21/2024 08:37
82000400
3
"Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 08:36
82000500
3
"Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 08:36
82000500
3
"Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 08:34
82000500
3
"Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 08:32
82000500
3
"Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 08:32
82000500
3
"Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 08:32
82000500
3
"Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 08:31
82000500
3
"Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 08:31
82000500
3
"Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 08:31
82000500
3
"Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 08:30
82000500
3
"Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 08:30
82000500
3
"Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 07:53
82000500
3
"Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 07:53
82000500
3
"Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:38
82000500
3
"Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:38
82000200
3
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:38
84000100
3
"SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=*REDACTED*;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:38
84000100
3
"SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=*REDACTED*;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:36
82000700
3
"Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:36
82000200
3
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:36
84000100
3
"SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=*REDACTED*;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:35
84000100
3
"SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=*REDACTED*;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:35
82000700
3
"Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:34
82000200
3
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:34
84000100
3
"SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=*REDACTED*;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:34
82000700
3
"Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:34
82000200
3
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:33
84000100
3
"SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=*REDACTED*;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:33
82000700
3
"Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:33
84000100
3
"SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=*REDACTED*;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:33
82000700
3
"Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:32
82000200
3
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:32
84000100
3
"SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=*REDACTED*;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:32
84000100
3
"SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=*REDACTED*;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:32
82000400
3
"Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:32
82000500
3
"Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:31
82000200
3
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:31
84000100
3
"SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=*REDACTED*;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:31
82000400
3
"Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:30
82000500
3
"Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
08/21/2024 00:30
82000200
3
"No Ranging Response received - T3 time-out;CM-MAC=*REDACTED*;CMTS-MAC=*REDACTED*;CM-QOS=1.1;CM-VER=3.1;"
Bottom of Form
2
0
EG
Expert
•
107.1K Messages
3 months ago
The signal status values at that snapshot in time were OK but the error log entries indicate that something is going on. Perhaps there is intermittent spurious noise ingress into the line(s) / an upstream channel / return path impairment somewhere.
There are other signal stat values that can't be read by the modem. They are the "Upstream Rx Power" (Upstream Receive Power Level), the "Upstream SNR Ch." (Upstream Signal To Noise Ratio), and the "Upstream ICFR" (In Channel Frequency Response). These are as equally important in diagnosing connectivity issues as are the modem's stats.
I'm going to escalate your issue to the Comcast corporate employees (The Digital Care Team) who are available to these boards. They will be able to poll the CMTS (Cable Modem Termination System) to check for any real-time degradation and / or error reports, see your node / cable plant, and modem health, and see whether or not everything is in the green zone. They can also see a history plot for the modem and those upstream receive signal stats.
You should get a reply here in your topic. Good luck !
1
0
HunterKH
6 Messages
3 months ago
Update: I spoke with a live agent via the phone and they put a work order in. They also granted me a 30-day rental of an Xfinity gateway free of charge. I have replaced my Arris SB8200 with the Xfinity gateway and the issue continues.
This new gateway also does not provide me with any helpful log messages.
0
0
HunterKH
6 Messages
3 months ago
Update: I have had the Xfinity gateway connected and properly activated for a few hours. Just had another complete outage. System Log messages are not as helpful as my Arris SurfBoard, but are pasted below:
1
0