As the subject says, I'm getting bad lag even when rebooting/restarting the modem. I get latency issues when doing ping test and getting packet loss of 20-50%. And as I see, I'm not the only one having this problem.
I called Comcast Business earlier today and was basically told that since I don't have a Comcast modem, he wouldn't help me. He said he saw no issues in my area and that was that. He said he'd start a ticket, [Edited: "Personal Information"], but when I checked back later, it was marked "closed".
Frequency start Value |
This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect. |
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|
Startup Procedure |
Procedure |
Status |
Comment |
Acquire Downstream Channel |
555000000 Hz |
Locked |
Connectivity State |
OK |
Operational |
Boot State |
OK |
Operational |
Security |
Enabled |
BPI+ |
IP Provisioning Mode |
Honor MDD |
honorMdd(4) |
|
|
Downstream Bonded Channels |
Channel |
Lock Status |
Modulation |
Channel ID |
Frequency |
Power |
SNR |
Correctables |
Uncorrectables |
1 |
Locked |
QAM256 |
28 |
555000000 Hz |
2.6 dBmV |
46.8 dB |
0 |
0 |
2 |
Locked |
QAM256 |
13 |
453000000 Hz |
2.3 dBmV |
47.1 dB |
0 |
0 |
3 |
Locked |
QAM256 |
14 |
459000000 Hz |
2.3 dBmV |
47.1 dB |
0 |
0 |
4 |
Locked |
QAM256 |
15 |
465000000 Hz |
2.3 dBmV |
47.1 dB |
0 |
0 |
5 |
Locked |
QAM256 |
16 |
471000000 Hz |
2.4 dBmV |
47.1 dB |
0 |
0 |
6 |
Locked |
QAM256 |
17 |
477000000 Hz |
2.4 dBmV |
47.1 dB |
0 |
0 |
7 |
Locked |
QAM256 |
18 |
483000000 Hz |
2.5 dBmV |
47.1 dB |
0 |
0 |
8 |
Locked |
QAM256 |
19 |
489000000 Hz |
2.5 dBmV |
47 dB |
0 |
0 |
9 |
Locked |
QAM256 |
20 |
495000000 Hz |
2.6 dBmV |
47.1 dB |
0 |
0 |
10 |
Locked |
QAM256 |
21 |
501000000 Hz |
2.5 dBmV |
47 dB |
0 |
0 |
11 |
Locked |
QAM256 |
22 |
507000000 Hz |
2.6 dBmV |
47.1 dB |
0 |
0 |
12 |
Locked |
QAM256 |
23 |
513000000 Hz |
2.6 dBmV |
47 dB |
0 |
0 |
13 |
Locked |
QAM256 |
24 |
519000000 Hz |
2.6 dBmV |
47 dB |
0 |
0 |
14 |
Locked |
QAM256 |
25 |
525000000 Hz |
2.6 dBmV |
46.9 dB |
0 |
0 |
15 |
Locked |
QAM256 |
26 |
531000000 Hz |
2.5 dBmV |
46.7 dB |
0 |
0 |
16 |
Locked |
QAM256 |
27 |
543000000 Hz |
2.6 dBmV |
46.7 dB |
0 |
0 |
17 |
Locked |
QAM256 |
29 |
561000000 Hz |
2.6 dBmV |
46.7 dB |
0 |
0 |
18 |
Locked |
QAM256 |
30 |
567000000 Hz |
2.6 dBmV |
46.6 dB |
0 |
0 |
19 |
Locked |
QAM256 |
31 |
573000000 Hz |
2.5 dBmV |
46.6 dB |
0 |
0 |
20 |
Locked |
QAM256 |
32 |
579000000 Hz |
2.4 dBmV |
46.4 dB |
0 |
0 |
21 |
Locked |
QAM256 |
33 |
585000000 Hz |
2.6 dBmV |
46.6 dB |
0 |
0 |
22 |
Locked |
QAM256 |
34 |
591000000 Hz |
2.5 dBmV |
46.5 dB |
0 |
0 |
23 |
Locked |
QAM256 |
35 |
597000000 Hz |
2.7 dBmV |
46.6 dB |
0 |
0 |
24 |
Locked |
QAM256 |
36 |
603000000 Hz |
2.7 dBmV |
46.5 dB |
0 |
0 |
25 |
Locked |
QAM256 |
37 |
609000000 Hz |
2.7 dBmV |
46.5 dB |
0 |
0 |
26 |
Locked |
QAM256 |
38 |
615000000 Hz |
2.7 dBmV |
46.5 dB |
0 |
0 |
27 |
Locked |
QAM256 |
39 |
621000000 Hz |
2.8 dBmV |
46.5 dB |
0 |
0 |
28 |
Locked |
QAM256 |
40 |
627000000 Hz |
2.9 dBmV |
46.6 dB |
0 |
0 |
29 |
Locked |
QAM256 |
41 |
633000000 Hz |
3 dBmV |
46.7 dB |
0 |
0 |
30 |
Locked |
QAM256 |
42 |
639000000 Hz |
3 dBmV |
46.6 dB |
0 |
0 |
31 |
Locked |
QAM256 |
43 |
645000000 Hz |
3 dBmV |
46.6 dB |
0 |
0 |
32 |
Locked |
QAM256 |
44 |
651000000 Hz |
3.1 dBmV |
46.1 dB |
0 |
0 |
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Upstream Bonded Channels |
Channel |
Lock Status |
US Channel Type |
Channel ID |
Symbol Rate |
Frequency |
Power |
1 |
Locked |
ATDMA |
17 |
5120 Ksym/sec |
16400000 Hz |
50 dBmV |
2 |
Locked |
ATDMA |
18 |
5120 Ksym/sec |
22800000 Hz |
50.3 dBmV |
3 |
Locked |
ATDMA |
19 |
5120 Ksym/sec |
29200000 Hz |
50.8 dBmV |
4 |
Locked |
ATDMA |
20 |
5120 Ksym/sec |
35600000 Hz |
50.8 dBmV |
5 |
Not Locked |
Unknown |
0 |
0 Ksym/sec |
0 Hz |
0.0 dBmV |
6 |
Not Locked |
Unknown |
0 |
0 Ksym/sec |
0 Hz |
0.0 dBmV |
7 |
Not Locked |
Unknown |
0 |
0 Ksym/sec |
0 Hz |
0.0 dBmV |
8 |
Not Locked |
Unknown |
0 |
0 Ksym/sec |
0 Hz |
0.0 dBmV |
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|
Downstream OFDM Channels |
Channel |
Lock Status |
Modulation / Profile ID |
Channel ID |
Frequency |
Power |
SNR / MER |
Active Subcarrier Number Range |
Unerrored Codewords |
Correctable Codewords |
Uncorrectable Codewords |
1 |
Locked |
0 ,1 ,2 ,3 |
193 |
690000000 Hz |
3.6 dBmV |
46.5 dB |
908 ~ 3187 |
10241818 |
4065623 |
0 |
2 |
Not Locked |
0 |
0 |
0 Hz |
0 dBmV |
0.0 dB |
0 ~ 4095 |
0 |
0 |
0 |
|
|
Upstream OFDMA Channels |
Channel |
Lock Status |
Modulation / Profile ID |
Channel ID |
Frequency |
Power |
1 |
Not Locked |
0 |
0 |
0 Hz |
0 dBmV |
2 |
Not Locked |
0 |
0 |
0 Hz |
0 dBmV |
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Extended Upstream Transmit Power |
Enable Extended Upstream Transmit Power |
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Current System Time:Sat Sep 14 01:56:53 2024 |
System Up Time:00:42:53
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Time |
Priority |
Description |
Sat Sep 14 01:59:06 2024 |
Critical (3) |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1; |
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EG
Expert
•
106.9K Messages
2 months ago
This may or may not be the root cause of the problem (YMMV) but it should be addressed regardless.
The upstream power is on the high side and it may be intermittently fluctuating even higher to out of spec levels. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels.
In an effort to try to obtain better connectivity / more wiggle room, check to see if there are any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1002 MHz, bi-directional, and no gold colored garbage from Home Depot, Target, Wal-Mart, etc. Splitters should be swapped with known to be good / new ones to test.
Also check the coax cable for any damage such as cuts, nicks, abrasions, kinks, sharp bends, etc.
If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two-way splitter connected directly off of the drop from the street / pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.
Good luck with it !
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EG
Expert
•
106.9K Messages
2 months ago
If there is nothing more that can be done to improve the connection quality, then you'll need a tech visit as stated.
Bear in mind that if the premises facing techs can not find or fix a problem at your home, it is they who are responsible for escalating it up to their line / network / maintenance dept. techs. The problem may lie beyond your home in the local neighborhood infrastructure somewhere but it is their S.O.P. to start at the home. And if the problem is found to be on their side of the demarcation point, there will not be any charge.
Good luck !
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