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topt4923

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Constant disconnects in 89147

Have a technician coming out, but scared they won't find anything wrong.  Nothing changed on my end, suspected it was the router, but have tried 3 different routers AND have directed connected a wired computer to cable modem and it still disconnected in the middle on the night.  It's just a quick hiccup but just enough to knock off streaming/video/games.

Here's my cable modem's log with this repeating message

08/23/2020 14:39 2436694061 5 "Dynamic Range Window violation"
08/23/2020 14:39 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=5c:e3:0e:73:39:99;CMTS-MAC=00:59:dc:79:02:af;CM-QOS=1.1;CM-VER=3.1;"
08/23/2020 14:38 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=5c:e3:0e:73:39:99;CMTS-MAC=00:59:dc:79:02:af;CM-QOS=1.1;CM-VER=3.1;"
08/23/2020 14:38 74010100 6 "CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=5c:e3:0e:73:39:99;CMTS-MAC=00:59:dc:79:02:af;CM-QOS=1.1;CM-VER=3.1;"

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Dave9

Contributor III

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251 Messages

Nothing else in the logs? That by itself doesn't look like a problem. Post signals and especially look for a growing number of uncorrected codewords. If the number of uncorrecteds is consistently increasing you have a problem.

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topt4923

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No, thats pretty much what I got from my logs, wonder what it is then...

Signals:

Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 357000000 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
33 Locked QAM256 357000000 Hz 4.7 dBmV 38.8 dB 2283 2241
9 Locked QAM256 831000000 Hz 3.6 dBmV 38.4 dB 484 981
13 Locked QAM256 855000000 Hz 3.6 dBmV 38.4 dB 352 908
17 Locked QAM256 879000000 Hz 3.3 dBmV 38.2 dB 451 849
20 Locked QAM256 897000000 Hz 3.1 dBmV 38.0 dB 412 767
21 Locked QAM256 903000000 Hz 3.1 dBmV 38.1 dB 343 886
22 Locked QAM256 909000000 Hz 2.9 dBmV 38.0 dB 470 960
23 Locked QAM256 915000000 Hz 3.1 dBmV 38.0 dB 441 828
24 Locked QAM256 921000000 Hz 3.0 dBmV 37.9 dB 453 766
25 Locked QAM256 927000000 Hz 2.8 dBmV 37.8 dB 360 739
26 Locked QAM256 933000000 Hz 2.8 dBmV 37.8 dB 444 831
27 Locked QAM256 939000000 Hz 2.6 dBmV 37.6 dB 445 691
28 Locked QAM256 945000000 Hz 2.2 dBmV 37.4 dB 418 717
29 Locked QAM256 951000000 Hz 1.9 dBmV 37.1 dB 353 607
30 Locked QAM256 957000000 Hz 1.2 dBmV 36.6 dB 426 728
31 Locked QAM256 963000000 Hz 0.9 dBmV 36.4 dB 402 644
32 Locked QAM256 969000000 Hz 0.5 dBmV 36.1 dB 428 654
34 Locked QAM256 363000000 Hz 4.9 dBmV 39.0 dB 2276 2112
35 Locked QAM256 369000000 Hz 5.1 dBmV 39.2 dB 2381 2238
36 Locked QAM256 375000000 Hz 5.1 dBmV 39.2 dB 2118 2211
37 Locked QAM256 381000000 Hz 5.2 dBmV 39.2 dB 2066 2157
38 Locked QAM256 387000000 Hz 5.3 dBmV 39.1 dB 2018 2213
39 Locked QAM256 393000000 Hz 5.2 dBmV 39.0 dB 1955 2264
40 Locked QAM256 399000000 Hz 5.3 dBmV 39.1 dB 1902 2270
41 Locked QAM256 405000000 Hz 5.4 dBmV 39.2 dB 1759 2425
42 Locked QAM256 411000000 Hz 5.4 dBmV 39.0 dB 1798 2304
43 Locked QAM256 417000000 Hz 5.5 dBmV 39.2 dB 1780 2373
44 Locked QAM256 423000000 Hz 5.5 dBmV 39.1 dB 1776 2363
45 Locked QAM256 429000000 Hz 5.4 dBmV 39.1 dB 1579 2279
46 Locked QAM256 435000000 Hz 5.5 dBmV 39.2 dB 1624 2599
47 Locked QAM256 441000000 Hz 5.4 dBmV 39.0 dB 1633 2313
48 Locked QAM256 447000000 Hz 5.4 dBmV 39.1 dB 1553 2533
159 Locked Other 300000000 Hz 7.1 dBmV 40.2 dB 77372051 72835



Upstream Bonded Channels
Channel Channel ID Lock Status US Channel Type Frequency Width Power
1 6 Locked SC-QAM Upstream 12900000 Hz 3200000 Hz 38.0 dBmV
2 1 Locked SC-QAM Upstream 36900000 Hz 6400000 Hz 40.0 dBmV
3 2 Locked SC-QAM Upstream 30500000 Hz 6400000 Hz 40.0 dBmV
4 3 Locked SC-QAM Upstream 24100000 Hz 6400000 Hz 40.0 dBmV
5 4 Locked SC-QAM Upstream 17700000 Hz 6400000 Hz 39.0 dBmV



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Dave9

Contributor III

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251 Messages

I would explore the reasons for all of those uncorrectables. If your uncorrectables are constantly increasing that's a problem on the downstream. Every now and then you might see a momentary burst of uncorrectables due to maintenance on the line or whatever. But if you're getting uncorrectables on a regular basis it's going to cause connection problems because that represents lost packets and lost data. For comparison I've had a total of about 20 uncorrectables in the past 2 months. You are showing over 100,000 since whenever your modem was last rebooted.

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Dave9

Contributor III

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Well, speak of the devil...Looks like I'm starting to get some ingress in the lower part of the 900 MHz band just as of this morning. This is definitely not how things should look. Uncorrectables are always a bad sign but can be hard to troubleshoot if it's intermittent.

Downstream Bonded Channels
Channel ID Lock Status Modulation Frequency Power SNR/MER Corrected Uncorrectables
17 Locked QAM256 879000000 Hz 3.9 dBmV 41.7 dB 2 0
18 Locked QAM256 885000000 Hz 3.5 dBmV 41.2 dB 3 0
19 Locked QAM256 891000000 Hz 3.5 dBmV 41.5 dB 3 0
20 Locked QAM256 897000000 Hz 3.3 dBmV 41.0 dB 1 0
21 Locked QAM256 903000000 Hz 3.2 dBmV 41.3 dB 8603 1578
22 Locked QAM256 909000000 Hz 3.2 dBmV 41.4 dB 9326 22561
23 Locked QAM256 915000000 Hz 3.0 dBmV 41.2 dB 1114 5639
24 Locked QAM256 921000000 Hz 3.1 dBmV 41.4 dB 6071 8237
25 Locked QAM256 927000000 Hz 2.9 dBmV 41.2 dB 2765 220
26 Locked QAM256 933000000 Hz 2.6 dBmV 40.6 dB 2 0
27 Locked QAM256 939000000 Hz 2.6 dBmV 40.7 dB 1 0
28 Locked QAM256 945000000 Hz 2.5 dBmV 41.1 dB 1 0
29 Locked QAM256 951000000 Hz 2.3 dBmV 41.0 dB 0 0

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LisaH

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1.1K Messages

Hi Topt4923. Based on the modem logs, it looks like there is a signal issue. To get help, please reach out to us on Twitter at @CoxHelp via DM, visit us on Facebook via private message, or email us at cox.help@cox.com. Provide us the name on the account with the complete service address with a link to this thread so we can get started. - Lisa, Cox Support Forums Moderator

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