Dynamic range window violation
I too continue to get these errors on my MB8600 modem:
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:
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?