Regular Visitor
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3 Messages
Please help... connectivity issues
Every once in awhile, I would lose internet and have to reboot everything (modem - Netgear CM1200 & router - Nighthawk R7000) to get back online. Maybe every few weeks, never checked modem reports or anything. Suddenly, as of Sunday (10/20) I am losing connection multiple times a day. I work from home, and it is destroying my ability to work.
On Sunday, there was apparently a Comcast worker somewhere in the area, and that explained my initial issues I guess. But after they finished their work yesterday, is when I am now experiencing multiple disconnections and having to restart my equipment repeatedly. A Comcast tech came out today and replaced the single splitter I have with one that lowers the power signal a bit, but the issues has continued since then.
I am a bit tech savy, but more on the software side. Most of what follows has me stumped. FYI: I only have one splitter between the modem and the incoming line (and that splitter was replaced with a new one today as described above). I have the "Enable Extended Upstream Transmit Power" box checked as it was checked by default when I setup the modem.
Thank you for any help!
Here is the modem report from Sunday (replaced my MAC with zeros):
|
Time |
Priority |
Description |
|
Sun Oct 20 17:41:13 2019 |
Critical (3) |
SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 17:29:09 2019 |
Warning (5) |
Dynamic Range Window violation |
|
Sun Oct 20 17:29:09 2019 |
Warning (5) |
RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 17:28:58 2019 |
Notice (6) |
TLV-11 - unrecognized OID;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;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=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 17:23:51 2019 |
Warning (5) |
Dynamic Range Window violation |
|
Sun Oct 20 17:23:51 2019 |
Warning (5) |
RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 17:23:50 2019 |
Warning (5) |
Dynamic Range Window violation |
|
Sun Oct 20 17:23:50 2019 |
Warning (5) |
RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 17:23:38 2019 |
Notice (6) |
TLV-11 - unrecognized OID;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;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=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 17:22:05 2019 |
Critical (3) |
Resetting the cable modem due to docsDevResetNow |
|
Sun Oct 20 17:18:38 2019 |
Critical (3) |
SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=200:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 17:06:33 2019 |
Warning (5) |
Dynamic Range Window violation |
|
Sun Oct 20 17:06:33 2019 |
Warning (5) |
RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 17:06:22 2019 |
Notice (6) |
TLV-11 - unrecognized OID;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;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=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 10:57:50 2019 |
Critical (3) |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 10:57:06 2019 |
Critical (3) |
SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 10:55:24 2019 |
Warning (5) |
Dynamic Range Window violation |
|
Sun Oct 20 10:55:24 2019 |
Warning (5) |
RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 10:55:23 2019 |
Warning (5) |
Dynamic Range Window violation |
|
Sun Oct 20 10:55:23 2019 |
Warning (5) |
RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 10:55:10 2019 |
Notice (6) |
TLV-11 - unrecognized OID;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;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=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 10:51:06 2019 |
Notice (6) |
CM-STATUS message sent. Event Type Code: 1; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 10:51:05 2019 |
Warning (5) |
MDD message timeout;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 10:51:00 2019 |
Notice (6) |
CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 10:50:59 2019 |
Notice (6) |
CM-STATUS message sent. Event Type Code: 23; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 10:50:59 2019 |
Notice (6) |
CM-STATUS message sent. Event Type Code: 22; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 10:50:51 2019 |
Critical (3) |
No Ranging Response received - T3 time-out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 10:50:31 2019 |
Warning (5) |
MDD message timeout;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 10:50:30 2019 |
Critical (3) |
SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 10:50:27 2019 |
Notice (6) |
CM-STATUS message sent. Event Type Code: 5; Chan ID: 22; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 10:50:25 2019 |
Notice (6) |
CM-STATUS message sent. Event Type Code: 4; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Sun Oct 20 10:50:22 2019 |
Notice (6) |
CM-STATUS message sent. Event Type Code: 22; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
Here is my modem status as of yesterday evening, after the issues, but before the tech came out today:
|
Startup Procedure |
|
Procedure |
Status |
Comment |
|
Acquire Downstream Channel |
483000000 Hz |
Locked |
|
Connectivity State |
OK |
Operational |
|
Boot State |
OK |
Operational |
|
Security |
Enabled |
BPI+ |
|
IP Provisioning Mode |
Honor MDD |
honorMdd(4) |
|
Downstream Bonded Channels |
|
Channel |
Lock Status |
Modulation |
Channel ID |
Frequency |
Power |
SNR |
Correctables |
Uncorrectables |
|
1 |
Locked |
QAM256 |
5 |
483000000 Hz |
11.1 dBmV |
43.2 dB |
0 |
0 |
|
2 |
Locked |
QAM256 |
6 |
489000000 Hz |
11.2 dBmV |
43.2 dB |
0 |
0 |
|
3 |
Locked |
QAM256 |
7 |
495000000 Hz |
11.3 dBmV |
43.2 dB |
0 |
0 |
|
4 |
Locked |
QAM256 |
8 |
507000000 Hz |
11.5 dBmV |
43.1 dB |
0 |
0 |
|
5 |
Locked |
QAM256 |
9 |
513000000 Hz |
11.6 dBmV |
43.2 dB |
0 |
0 |
|
6 |
Locked |
QAM256 |
10 |
519000000 Hz |
11.7 dBmV |
43.2 dB |
0 |
0 |
|
7 |
Locked |
QAM256 |
11 |
525000000 Hz |
11.8 dBmV |
43.2 dB |
0 |
0 |
|
8 |
Locked |
QAM256 |
12 |
531000000 Hz |
11.9 dBmV |
43.3 dB |
0 |
0 |
|
9 |
Locked |
QAM256 |
13 |
537000000 Hz |
12.2 dBmV |
43.3 dB |
0 |
0 |
|
10 |
Locked |
QAM256 |
14 |
543000000 Hz |
12.3 dBmV |
43.5 dB |
0 |
0 |
|
11 |
Locked |
QAM256 |
15 |
549000000 Hz |
12.4 dBmV |
43.5 dB |
0 |
0 |
|
12 |
Locked |
QAM256 |
16 |
555000000 Hz |
12.4 dBmV |
43.4 dB |
0 |
0 |
|
13 |
Locked |
QAM256 |
17 |
561000000 Hz |
12.6 dBmV |
43.4 dB |
0 |
0 |
|
14 |
Locked |
QAM256 |
18 |
567000000 Hz |
12.5 dBmV |
43.4 dB |
0 |
0 |
|
15 |
Locked |
QAM256 |
19 |
573000000 Hz |
12.6 dBmV |
43.4 dB |
0 |
0 |
|
16 |
Locked |
QAM256 |
20 |
579000000 Hz |
12.6 dBmV |
43.4 dB |
0 |
0 |
|
17 |
Locked |
QAM256 |
21 |
585000000 Hz |
12.7 dBmV |
43.4 dB |
0 |
0 |
|
18 |
Locked |
QAM256 |
22 |
591000000 Hz |
12.5 dBmV |
43.3 dB |
0 |
0 |
|
19 |
Locked |
QAM256 |
23 |
597000000 Hz |
12.6 dBmV |
43.3 dB |
0 |
0 |
|
20 |
Locked |
QAM256 |
24 |
603000000 Hz |
12.4 dBmV |
43.2 dB |
0 |
0 |
|
21 |
Locked |
QAM256 |
25 |
609000000 Hz |
12.4 dBmV |
43.1 dB |
0 |
0 |
|
22 |
Locked |
QAM256 |
26 |
615000000 Hz |
12.2 dBmV |
43 dB |
0 |
0 |
|
23 |
Locked |
QAM256 |
27 |
621000000 Hz |
12.4 dBmV |
43 dB |
0 |
0 |
|
24 |
Locked |
QAM256 |
28 |
627000000 Hz |
12.1 dBmV |
43 dB |
0 |
0 |
|
25 |
Locked |
QAM256 |
29 |
633000000 Hz |
12.1 dBmV |
42.9 dB |
0 |
0 |
|
26 |
Locked |
QAM256 |
30 |
639000000 Hz |
11.8 dBmV |
42.7 dB |
0 |
0 |
|
27 |
Locked |
QAM256 |
31 |
645000000 Hz |
11.9 dBmV |
42.6 dB |
0 |
0 |
|
28 |
Locked |
QAM256 |
32 |
651000000 Hz |
12 dBmV |
42.7 dB |
0 |
0 |
|
29 |
Locked |
QAM256 |
33 |
657000000 Hz |
12.2 dBmV |
42.8 dB |
0 |
0 |
|
30 |
Locked |
QAM256 |
34 |
663000000 Hz |
12.2 dBmV |
42.8 dB |
0 |
0 |
|
31 |
Locked |
QAM256 |
35 |
669000000 Hz |
12.3 dBmV |
42.7 dB |
0 |
0 |
|
32 |
Locked |
QAM256 |
36 |
675000000 Hz |
12 dBmV |
42 dB |
0 |
0 |
|
Upstream OFDMA Channels |
|
Channel |
Lock Status |
US Channel Type |
Channel ID |
Symbol Rate |
Frequency |
Power |
|
1 |
Locked |
ATDMA |
1 |
5120 Ksym/sec |
35700000 Hz |
36.8 dBmV |
|
2 |
Locked |
ATDMA |
2 |
5120 Ksym/sec |
29200000 Hz |
37.3 dBmV |
|
3 |
Locked |
ATDMA |
3 |
5120 Ksym/sec |
22700000 Hz |
36.8 dBmV |
|
4 |
Locked |
ATDMA |
4 |
5120 Ksym/sec |
16200000 Hz |
37 dBmV |
|
5 |
Not Locked |
Unknown |
0 |
0 Ksym/sec |
0 Hz |
0.0 dBmV |
|
6 |
Not Locked |
Unknown |
0 |
0 Ksym/sec |
0 Hz |
0.0 dBmV |
|
7 |
Not Locked |
Unknown |
0 |
0 Ksym/sec |
0 Hz |
0.0 dBmV |
|
8 |
Not Locked |
Unknown |
0 |
0 Ksym/sec |
0 Hz |
0.0 dBmV |
|
Downstream OFDM Channels |
|
Channel |
Lock Status |
Modulation / Profile ID |
Channel ID |
Frequency |
Power |
SNR / MER |
Active Subcarrier Number Range |
Unerrored Codewords |
Correctable Codewords |
Uncorrectable Codewords |
|
1 |
Locked |
0 |
159 |
690000000 Hz |
13.2 dBmV |
42.7 dB |
1246 ~ 2849 |
43477194 |
2359 |
0 |
|
2 |
Not Locked |
0 |
0 |
0 Hz |
0 dBmV |
0.0 dB |
0 ~ 4095 |
0 |
0 |
0 |
|
Upstream OFDMA Channels |
|
Channel |
Lock Status |
Modulation / Profile ID |
Channel ID |
Frequency |
Power |
|
1 |
Not Locked |
0 |
0 |
0 Hz |
0 dBmV |
|
2 |
Not Locked |
0 |
0 |
0 Hz |
0 dBmV |
|
Extended Upstream Transmit Power |
|
Enable Extended Upstream Transmit Power |
|
|
|
Current System Time:Sun Oct 20 17:50:43 2019 |
|
System Up Time:00:22:29 |
Now here is my modem report since the tech came out today and replaced the splitter:
|
Time |
Priority |
Description |
|
Mon Oct 21 19:53:49 2019 |
Critical (3) |
SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 19:41:32 2019 |
Notice (6) |
TLV-11 - unrecognized OID;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;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=200:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 12:03:33 2019 |
Critical (3) |
SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 11:51:30 2019 |
Warning (5) |
Dynamic Range Window violation |
|
Mon Oct 21 11:51:30 2019 |
Warning (5) |
RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 11:51:28 2019 |
Warning (5) |
Dynamic Range Window violation |
|
Mon Oct 21 11:51:28 2019 |
Warning (5) |
RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 11:51:18 2019 |
Notice (6) |
TLV-11 - unrecognized OID;CM-MAC=200:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;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=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 10:54:36 2019 |
Critical (3) |
SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 10:42:21 2019 |
Notice (6) |
TLV-11 - unrecognized OID;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;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=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 10:41:09 2019 |
Critical (3) |
Resetting the cable modem due to docsDevResetNow |
|
Mon Oct 21 10:38:37 2019 |
Warning (5) |
Dynamic Range Window violation |
|
Mon Oct 21 10:38:37 2019 |
Warning (5) |
RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 10:38:31 2019 |
Notice (6) |
TLV-11 - unrecognized OID;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 10:38:21 2019 |
Notice (6) |
Honoring MDD; IP provisioning mode = IPv6 |
|
Mon Oct 21 10:38:04 2019 |
Critical (3) |
SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 10:37:30 2019 |
Critical (3) |
Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 10:37:30 2019 |
Critical (3) |
SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 10:37:10 2019 |
Critical (3) |
Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 10:37:10 2019 |
Critical (3) |
SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 10:36:51 2019 |
Critical (3) |
Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 10:36:51 2019 |
Critical (3) |
SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 10:36:30 2019 |
Critical (3) |
Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 10:36:30 2019 |
Critical (3) |
SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 10:35:57 2019 |
Warning (5) |
MDD message timeout;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 10:35:56 2019 |
Critical (3) |
SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 10:35:51 2019 |
Warning (5) |
MDD message timeout;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 10:35:50 2019 |
Critical (3) |
SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 09:15:38 2019 |
Warning (5) |
Dynamic Range Window violation |
|
Mon Oct 21 09:15:38 2019 |
Warning (5) |
RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
|
Mon Oct 21 09:04:39 2019 |
Warning (5) |
Dynamic Range Window violation |
|
Mon Oct 21 09:04:39 2019 |
Warning (5) |
RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=00:00:00:00:00:00;CMTS-MAC=dc:eb:94:b5:45:5f;CM-QOS=1.1;CM-VER=3.1; |
And here is my modem status as of tonight after having to restart my devices multiple times after the tech's visit:
|
Startup Procedure |
|
Procedure |
Status |
Comment |
|
Acquire Downstream Channel |
537000000 Hz |
Locked |
|
Connectivity State |
OK |
Operational |
|
Boot State |
OK |
Operational |
|
Security |
Enabled |
BPI+ |
|
IP Provisioning Mode |
Honor MDD |
honorMdd(4) |
|
Downstream Bonded Channels |
|
Channel |
Lock Status |
Modulation |
Channel ID |
Frequency |
Power |
SNR |
Correctables |
Uncorrectables |
|
1 |
Locked |
QAM256 |
13 |
537000000 Hz |
8.9 dBmV |
43.6 dB |
0 |
0 |
|
2 |
Locked |
QAM256 |
5 |
483000000 Hz |
7.9 dBmV |
43.6 dB |
0 |
0 |
|
3 |
Locked |
QAM256 |
6 |
489000000 Hz |
8 dBmV |
43.5 dB |
0 |
0 |
|
4 |
Locked |
QAM256 |
7 |
495000000 Hz |
8.1 dBmV |
43.5 dB |
0 |
0 |
|
5 |
Locked |
QAM256 |
8 |
507000000 Hz |
8.3 dBmV |
43.5 dB |
0 |
0 |
|
6 |
Locked |
QAM256 |
9 |
513000000 Hz |
8.3 dBmV |
43.5 dB |
0 |
0 |
|
7 |
Locked |
QAM256 |
10 |
519000000 Hz |
8.5 dBmV |
43.5 dB |
0 |
0 |
|
8 |
Locked |
QAM256 |
11 |
525000000 Hz |
8.6 dBmV |
43.5 dB |
0 |
0 |
|
9 |
Locked |
QAM256 |
12 |
531000000 Hz |
8.6 dBmV |
43.5 dB |
0 |
0 |
|
10 |
Locked |
QAM256 |
14 |
543000000 Hz |
8.9 dBmV |
43.7 dB |
0 |
0 |
|
11 |
Locked |
QAM256 |
15 |
549000000 Hz |
9.1 dBmV |
43.8 dB |
0 |
0 |
|
12 |
Locked |
QAM256 |
16 |
555000000 Hz |
9 dBmV |
43.6 dB |
0 |
0 |
|
13 |
Locked |
QAM256 |
17 |
561000000 Hz |
9.2 dBmV |
43.6 dB |
0 |
0 |
|
14 |
Locked |
QAM256 |
18 |
567000000 Hz |
9.1 dBmV |
43.6 dB |
0 |
0 |
|
15 |
Locked |
QAM256 |
19 |
573000000 Hz |
9.1 dBmV |
43.6 dB |
0 |
0 |
|
16 |
Locked |
QAM256 |
20 |
579000000 Hz |
9.2 dBmV |
43.6 dB |
0 |
0 |
|
17 |
Locked |
QAM256 |
21 |
585000000 Hz |
9 dBmV |
43.5 dB |
0 |
0 |
|
18 |
Locked |
QAM256 |
22 |
591000000 Hz |
9.1 dBmV |
43.5 dB |
0 |
0 |
|
19 |
Locked |
QAM256 |
23 |
597000000 Hz |
8.9 dBmV |
43.4 dB |
0 |
0 |
|
20 |
Locked |
QAM256 |
24 |
603000000 Hz |
8.9 dBmV |
43.3 dB |
0 |
0 |
|
21 |
Locked |
QAM256 |
25 |
609000000 Hz |
8.5 dBmV |
43.1 dB |
0 |
0 |
|
22 |
Locked |
QAM256 |
26 |
615000000 Hz |
8.4 dBmV |
43.1 dB |
0 |
0 |
|
23 |
Locked |
QAM256 |
27 |
621000000 Hz |
8.4 dBmV |
43 dB |
0 |
0 |
|
24 |
Locked |
QAM256 |
28 |
627000000 Hz |
8.1 dBmV |
42.9 dB |
0 |
0 |
|
25 |
Locked |
QAM256 |
29 |
633000000 Hz |
8 dBmV |
42.8 dB |
0 |
0 |
|
26 |
Locked |
QAM256 |
30 |
639000000 Hz |
7.6 dBmV |
42.6 dB |
0 |
0 |
|
27 |
Locked |
QAM256 |
31 |
645000000 Hz |
7.6 dBmV |
42.5 dB |
0 |
0 |
|
28 |
Locked |
QAM256 |
32 |
651000000 Hz |
7.6 dBmV |
42.4 dB |
0 |
0 |
|
29 |
Locked |
QAM256 |
33 |
657000000 Hz |
7.6 dBmV |
42.5 dB |
0 |
0 |
|
30 |
Locked |
QAM256 |
34 |
663000000 Hz |
7.6 dBmV |
42.5 dB |
0 |
0 |
|
31 |
Locked |
QAM256 |
35 |
669000000 Hz |
7.4 dBmV |
42.4 dB |
0 |
0 |
|
32 |
Locked |
QAM256 |
36 |
675000000 Hz |
7.2 dBmV |
41.7 dB |
0 |
0 |
|
Upstream Bonded Channels |
|
Channel |
Lock Status |
US Channel Type |
Channel ID |
Symbol Rate |
Frequency |
Power |
|
1 |
Locked |
ATDMA |
1 |
5120 Ksym/sec |
35700000 Hz |
40.8 dBmV |
|
2 |
Locked |
ATDMA |
2 |
5120 Ksym/sec |
29200000 Hz |
40.8 dBmV |
|
3 |
Locked |
ATDMA |
3 |
5120 Ksym/sec |
22700000 Hz |
40.8 dBmV |
|
4 |
Locked |
ATDMA |
4 |
5120 Ksym/sec |
16200000 Hz |
40.8 dBmV |
|
5 |
Not Locked |
Unknown |
0 |
0 Ksym/sec |
0 Hz |
0.0 dBmV |
|
6 |
Not Locked |
Unknown |
0 |
0 Ksym/sec |
0 Hz |
0.0 dBmV |
|
7 |
Not Locked |
Unknown |
0 |
0 Ksym/sec |
0 Hz |
0.0 dBmV |
|
8 |
Not Locked |
Unknown |
0 |
0 Ksym/sec |
0 Hz |
0.0 dBmV |
|
Downstream OFDM Channels |
|
Channel |
Lock Status |
Modulation / Profile ID |
Channel ID |
Frequency |
Power |
SNR / MER |
Active Subcarrier Number Range |
Unerrored Codewords |
Correctable Codewords |
Uncorrectable Codewords |
|
1 |
Locked |
0 |
159 |
690000000 Hz |
7.9 dBmV |
41.8 dB |
1246 ~ 2849 |
89477282 |
52 |
0 |
|
2 |
Not Locked |
0 |
0 |
0 Hz |
0 dBmV |
0.0 dB |
0 ~ 4095 |
0 |
0 |
0 |
|
Upstream OFDMA Channels |
|
Channel |
Lock Status |
Modulation / Profile ID |
Channel ID |
Frequency |
Power |
|
1 |
Not Locked |
0 |
0 |
0 Hz |
0 dBmV |
|
2 |
Not Locked |
0 |
0 |
0 Hz |
0 dBmV |
|
Extended Upstream Transmit Power |
|
Enable Extended Upstream Transmit Power |
|
|
|
Current System Time:Mon Oct 21 20:26:09 2019 |
|
System Up Time:00:45:20 |
jayabee
Regular Visitor
•
3 Messages
5 years ago
I will add, it is frustrating when Comcast over the phone and the tech who came to my house tell me everything looks good. Of course it looks good when it is up, running, and connected. When its down and I call, they tell me to restart my equipment because they can't see it, and of course it connects when I do, and then they tell me everything looks good again. I'm not complaining about the quality of service when I can stay connected.
They are doing zero for me related to the exact moment the connection goes from good to broken. Part of their claim is its not their modem, so they can't say its a problem on their end. Well, everything on my end was working pretty well (for months) until they worked on the lines yesterday.
0
0
EG
Expert
•
103.5K Messages
5 years ago
Even though the signal stats looked o/k at that snapshot in time, the error log entries confirm that something is going on. Perhaps there is noise ingress into the line(s) somewhere.
There are other signal stat figures 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 that are available to these boards. They can check the CMTS (Cable Modem Termination System) 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 poll for those upstream receive signal stats.
You should get a reply here in your topic. Good luck !
0
Xfinity_Support
Official Employee
•
1K Messages
5 years ago
To send a private message, please click our name "ComcastSupport" then select "Send a Message" on the right side. Thanks!
0