Very long time Xfinity customer and we've had this setup for several years without issues. Using a Motorola 8600 cable modem. Starting a little over a few months ago, noticed that Internet speeds drop and latency increases after several days (could be up to 2 or 3 weeks sometimes). This is then fixed when the cable modem is rebooted. The cycle then repeats. The duration is unpredictable - could be days, weeks.
I suspect cable or signal issues more than modem issues. Here are the stats from the modem (replaced the cable from the wall to the modem a few days ago) - can someone tell me if any of these numbers look off and if so, what should I do next?
| Downstream Bonded Channels |
 |
|
|
|
| Channel |
Lock Status |
Modulation |
Channel ID |
Freq. (MHz) |
Pwr (dBmV) |
SNR (dB) |
Corrected |
Uncorrected |
| 1 |
Locked |
QAM256 |
44 |
669.0 |
-5.3 |
43.6 |
73940 |
122384 |
| 2 |
Locked |
QAM256 |
13 |
471.0 |
-7.4 |
43.0 |
3369 |
4742 |
| 3 |
Locked |
QAM256 |
14 |
477.0 |
-7.3 |
43.0 |
3518 |
4688 |
| 4 |
Locked |
QAM256 |
15 |
483.0 |
-6.9 |
43.2 |
2898 |
3897 |
| 5 |
Locked |
QAM256 |
16 |
489.0 |
-6.7 |
43.4 |
3357 |
4861 |
| 6 |
Locked |
QAM256 |
17 |
495.0 |
-6.5 |
42.5 |
3470 |
4474 |
| 7 |
Locked |
QAM256 |
18 |
507.0 |
-6.6 |
43.4 |
3429 |
4479 |
| 8 |
Locked |
QAM256 |
19 |
513.0 |
-6.3 |
43.9 |
2581 |
3433 |
| 9 |
Locked |
QAM256 |
20 |
519.0 |
-6.6 |
43.5 |
2712 |
3714 |
| 10 |
Locked |
QAM256 |
21 |
525.0 |
-6.1 |
43.6 |
2031 |
2359 |
| 11 |
Locked |
QAM256 |
22 |
531.0 |
-6.8 |
42.8 |
2865 |
3759 |
| 12 |
Locked |
QAM256 |
23 |
543.0 |
-6.8 |
43.5 |
2997 |
4020 |
| 13 |
Locked |
QAM256 |
24 |
549.0 |
-6.7 |
43.6 |
2170 |
2408 |
| 14 |
Locked |
QAM256 |
25 |
555.0 |
-6.6 |
43.7 |
2444 |
2901 |
| 15 |
Locked |
QAM256 |
26 |
561.0 |
-6.7 |
43.7 |
2354 |
2135 |
| 16 |
Locked |
QAM256 |
27 |
567.0 |
-6.4 |
42.3 |
2359 |
1933 |
| 17 |
Locked |
QAM256 |
28 |
573.0 |
-6.6 |
42.7 |
2342 |
2362 |
| 18 |
Locked |
QAM256 |
29 |
579.0 |
-6.4 |
43.3 |
2281 |
2490 |
| 19 |
Locked |
QAM256 |
30 |
585.0 |
-6.6 |
40.7 |
2217 |
2412 |
| 20 |
Locked |
QAM256 |
31 |
591.0 |
-6.4 |
38.3 |
2012 |
1503 |
| 21 |
Locked |
QAM256 |
32 |
597.0 |
-6.6 |
41.7 |
2295 |
2367 |
| 22 |
Locked |
QAM256 |
33 |
603.0 |
-6.5 |
41.9 |
1681 |
1146 |
| 23 |
Locked |
QAM256 |
34 |
609.0 |
-6.4 |
42.5 |
2193 |
2530 |
| 24 |
Locked |
QAM256 |
35 |
615.0 |
-6.2 |
42.6 |
1431 |
941 |
| 25 |
Locked |
QAM256 |
36 |
621.0 |
-6.5 |
38.3 |
2699 |
2969 |
| 26 |
Locked |
QAM256 |
37 |
627.0 |
-5.8 |
42.7 |
1478 |
1315 |
| 27 |
Locked |
QAM256 |
38 |
633.0 |
-6.0 |
37.4 |
1873 |
1719 |
| 28 |
Locked |
QAM256 |
39 |
639.0 |
-5.6 |
43.5 |
1571 |
892 |
| 29 |
Locked |
QAM256 |
40 |
645.0 |
-5.6 |
42.8 |
1573 |
1343 |
| 30 |
Locked |
QAM256 |
41 |
651.0 |
-5.9 |
43.6 |
1462 |
1260 |
| 31 |
Locked |
QAM256 |
42 |
657.0 |
-5.4 |
43.9 |
1535 |
984 |
| 32 |
Locked |
QAM256 |
43 |
663.0 |
-5.9 |
43.5 |
80311 |
114097 |
| 33 |
Locked |
OFDM PLC |
193 |
722.0 |
-4.6 |
43.3 |
177764066 |
312 |
|
| Upstream Bonded Channels |
|
|
|
|
| Channel |
Lock Status |
Channel Type |
Channel ID |
Symb. Rate (Ksym/sec) |
Freq. (MHz) |
Pwr (dBmV) |
| 1 |
Locked |
SC-QAM |
17 |
5120 |
16.4 |
58.0 |
| 2 |
Locked |
SC-QAM |
18 |
5120 |
22.8 |
58.0 |
| 3 |
Locked |
SC-QAM |
19 |
5120 |
29.2 |
58.0 |
| 4 |
Locked |
SC-QAM |
20 |
5120 |
35.6 |
58.0 |
| 5 |
Locked |
SC-QAM |
21 |
2560 |
40.4 |
55.0 |
| 6 |
Locked |
SC-QAM |
22 |
2560 |
10.4 |
55.0 |
|
No Responses!