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user_3erze9
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Saturday, November 29th, 2025 5:07 AM

Dynamic Range Window Violations and loss of connection

Recently I've been dealing with excessive DRW violations and loss of connection. Not sure if it's a coincidence or not but the local fiber company has been running fiber up the poles through the street all week, not sure if they knocked a connection loose up the line but yesterday and today I've been dropping connection multiple times. I noticed the upstream power levels on my modem are lower than the recommended values by Arris. Anyone care to chime in on these power levels? Thanks!

28/11/2025
22:29:32		 6 DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
28/11/2025
22:29:37		 5 REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
28/11/2025
22:29:37		 5 RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
28/11/2025
22:29:37		 5 Dynamic Range Window violation
28/11/2025
22:29:37		 5 RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
28/11/2025
22:29:37		 5 Dynamic Range Window violation

Channel ID Lock Status Modulation Frequency Power SNR/MER Corrected Uncorrectables
37 Locked QAM256 513000000 Hz 10 dBmV 41 dB 0 0
9 Locked QAM256 339000000 Hz 11 dBmV 41 dB 0 0
10 Locked QAM256 345000000 Hz 11 dBmV 41 dB 0 0
11 Locked QAM256 351000000 Hz 10 dBmV 41 dB 0 0
12 Locked QAM256 357000000 Hz 10 dBmV 41 dB 0 0
13 Locked QAM256 363000000 Hz 10 dBmV 41 dB 0 0
14 Locked QAM256 369000000 Hz 10 dBmV 41 dB 0 0
15 Locked QAM256 375000000 Hz 11 dBmV 41 dB 0 0
16 Locked QAM256 381000000 Hz 11 dBmV 41 dB 0 0
17 Locked QAM256 387000000 Hz 11 dBmV 41 dB 0 0
18 Locked QAM256 393000000 Hz 11 dBmV 41 dB 0 0
19 Locked QAM256 399000000 Hz 11 dBmV 41 dB 0 0
20 Locked QAM256 405000000 Hz 11 dBmV 41 dB 0 0
21 Locked QAM256 411000000 Hz 11 dBmV 41 dB 0 0
22 Locked QAM256 417000000 Hz 11 dBmV 41 dB 0 0
23 Locked QAM256 423000000 Hz 11 dBmV 41 dB 0 0
24 Locked QAM256 429000000 Hz 11 dBmV 41 dB 0 0
25 Locked QAM256 435000000 Hz 11 dBmV 41 dB 0 0
26 Locked QAM256 441000000 Hz 11 dBmV 41 dB 0 0
27 Locked QAM256 447000000 Hz 11 dBmV 41 dB 0 0
28 Locked QAM256 453000000 Hz 11 dBmV 41 dB 0 0
29 Locked QAM256 459000000 Hz 10 dBmV 41 dB 0 0
30 Locked QAM256 465000000 Hz 11 dBmV 41 dB 0 0
31 Locked QAM256 471000000 Hz 10 dBmV 41 dB 0 0
32 Locked QAM256 477000000 Hz 10 dBmV 41 dB 0 0
33 Locked QAM256 483000000 Hz 10 dBmV 41 dB 0 0
34 Locked QAM256 489000000 Hz 10 dBmV 41 dB 0 0
35 Locked QAM256 495000000 Hz 10 dBmV 41 dB 0 0
36 Locked QAM256 507000000 Hz 10 dBmV 41 dB 0 0
38 Locked QAM256 519000000 Hz 10 dBmV 41 dB 1 0
39 Locked QAM256 525000000 Hz 10 dBmV 41 dB 0 0
40 Locked QAM256 531000000 Hz 10 dBmV 41 dB 0 0
159 Locked OFDM PLC 558000000 Hz 12 dBmV 42 dB 159 0


Upstream Bonded Channels
Channel ID Lock Status US Channel Type Frequency Width Power
1 Locked SC-QAM 35600000 Hz 6400000 37.8 dBmV
2 Locked SC-QAM 29200000 Hz 6400000 37.3 dBmV
3 Locked SC-QAM 22800000 Hz 6400000 37.3 dBmV
4 Locked SC-QAM 16400000 Hz 6400000 36.8 dBmV
5 Locked SC-QAM 39600000 Hz 1600000 38.3 dBmV

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2 hours ago

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XfinityQue

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264 Messages

3 hours ago

 

user_3erze9 hi there! Thanks for reaching out. That's usually caused by poor network quality due to distance, interference, network congestion or faulty hardware. Have you done some basic troubleshooting such as disconnecting from power for 60 seconds?

 

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