Taffeys
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Joined 11 years ago
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Re: Dynamic range window violation
I was able to schedule time yesterday to connect the modem directly to theDEMARC. No issues after 4 hours so I changed out the first splitter for a new one and now after 24 hours the modem has not reported any errors and just a fewCorrected. I'll give it a few more days.2Views0likes1CommentRe: Dynamic range window violation
I was not able to direct connect the modem today but I now see that after a full factory reset 28 hours ago I have not had oneerror on myMB8600modem. However, I see many corrected and uncorrected errors. Channel Channel ID Freq. (MHz) Pwr (dBmV) SNR (dB) Corrected Uncorrected 1 9 831 2.3 39 56 118 2 1 783 1.2 39.5 49 125 3 13 855 1.5 38.7 51 124 4 14 861 1 38.3 50 124 5 15 867 0.9 38.2 59 115 6 16 873 1.2 38.1 50 122 7 17 879 1.4 38.1 63 111 8 21 903 1.8 38.2 65 109 9 25 927 2.6 37.9 69 131 10 26 933 3.4 38.3 59 130 11 27 939 3.2 38.4 54 128 12 28 945 2.7 38.4 37 145 13 29 951 2.6 38.5 46 133 14 30 957 3.1 38.7 40 135 15 31 963 3.6 38.9 45 137 16 32 969 4 39 58 125 17 33 357 0.8 39.2 49 129 18 34 363 0.5 39.4 66 115 19 35 369 0.5 39.6 70 115 20 36 375 1.2 40.2 61 118 21 37 381 1.3 40 62 115 22 38 387 1.3 40.1 61 119 23 39 393 1.4 40.2 57 121 24 40 399 1.2 40.1 62 120 25 41 405 1 39.9 61 121 26 42 411 1.1 39.9 59 117 27 43 417 0.9 39.8 54 126 28 44 423 0.6 39.7 57 119 29 45 429 0.7 39.5 58 118 30 46 435 1 40 61 115 31 47 441 1.1 40.2 48 130 32 48 447 1.3 40.4 44 136 Does this not indicate there is no issue with my hardware/cables/splitter?0Views0likes3CommentsDynamic range window violation
I too continue to get theseerrors on my MB8600modem: Dynamic Range Window violation RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=2c:86:d2:89:c5:5a;CM-QOS=1.1;CM-VER=3.1; Dynamic Range Window violation 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=xx:xx:xx:xx:xx:xx;CMTS-MAC=2c:86:d2:89:c5:5a;CM-QOS=1.1;CM-VER=3.1; CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=2c:86:d2:89:c5:5a;CM-QOS=1.1;CM-VER=3.1; This same problem was reported here months ago with no final resolution posted by COX nor the OP: https://forums.cox.com/forum_home/internet_forum/f/internet-forum/26567/dynamic-range-window-violation I have totally rebuilt the cabling from DEMARC to modem, including new splitters. There are no amplifiers or anything else in the path. System Up Time 1 days 02h:41m:41s Downstream Bonded Channels Channel Freq. (MHz) Pwr (dBmV) SNR (dB) Corrected Corrected 1 855.0 0.6 38.4 538 1555 2 783.0 0.0 39.1 824 2228 3 789.0 -0.9 38.6 541 1460 4 795.0 -1.7 38.2 789 1958 5 801.0 -2.4 37.7 767 2245 6 807.0 -2.4 37.7 639 1931 7 813.0 -1.5 37.8 624 1696 8 819.0 -0.7 38.0 722 2171 9 825.0 0.3 38.4 570 1671 10 831.0 1.2 38.8 581 1616 11 837.0 1.0 38.7 583 1622 12 843.0 1.1 38.8 650 2121 13 849.0 0.6 38.4 502 1447 14 861.0 0.2 38.1 602 2063 15 867.0 0.2 38.0 636 2102 16 873.0 0.6 37.9 705 2374 17 357.0 1.3 39.1 1660 6783 18 363.0 0.9 39.3 1110 5041 19 369.0 1.0 39.4 1522 6867 20 375.0 1.7 40.0 1133 5020 21 381.0 1.7 39.9 247 1232 22 387.0 1.6 40.1 903 4038 23 393.0 1.7 40.0 1284 5928 24 399.0 1.5 39.9 1380 5801 25 405.0 1.2 39.8 1331 5616 26 411.0 1.2 39.8 1229 5717 27 417.0 1.0 39.6 1250 5699 28 423.0 0.7 39.5 1257 5718 29 429.0 0.9 39.6 1376 5677 30 435.0 1.1 39.8 1395 5633 31 441.0 1.2 40.3 1360 5564 32 447.0 1.3 40.2 1330 5626 Upstream Bonded Channels Channel Symb. Rate (Ksym/sec) Freq. (MHz) Pwr (dBmV) 1 5120 19.4 37.8 2 5120 25.8 37.5 3 5120 32.2 37.3 4 5120 38.6 38.3 5 2560 14.6 37.0 I have performed several "hard" factory resets with these same errors returning within seconds or minutes. What is/are the cause/s? What is the resolution?2.2KViews0likes6Comments