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Re: Intermittent packet loss starting in the evening.

Itai_H
Regular Visitor

Re: Intermittent packet loss starting in the evening.

I've been experiencing intermittent connection issues since the start of the pandemic, and having exhausted all other troubleshooting avenues, I've arrived at a hypothesis - that Comcast's backend is simply not tuned or built up to manage the additional usage posed by the number of people working from home. The commonplace is that for all the fee hikes Comcast has been levying on its users over the years, very little of it has gone back into building up its infrastructure. Some argue that Comcast sees the writing on the wall for its cable service with the advent of 5G so they aren't going to bother sinking more money into it - their future is more tied to the Peacock (NBC) than the wires. 

 

I hope I am proven wring but I think this kind of spotty service is what we're in for for the duration fo the pandemic. 

EG
Expert

Re: Intermittent packet loss starting in the evening.

Start here;


https://forums.xfinity.com/t5/Your-Home-Network/Internet-Troubleshooting-Tips/m-p/3310447#M316652

 



I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
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Itai_H
Regular Visitor

Re: Intermittent packet loss starting in the evening.

Thank you, that is good info. I’ve pretty much done all that plus had the line from pole replaced. Hey, I’m not anti-Comcast, but it is just a company. We can point out where it’s weak.
EG
Expert

Re: Intermittent packet loss starting in the evening.

Then get a tech out to investigate / correct the problem. 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 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.
Good luck !



I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!
josu15
Regular Visitor

Re: Intermittent packet loss starting in the evening.

I've done most of the things on that list, including testing with multiple different PCs. These are the signals I have with the modem in my living room. This is after a technician came and removed a splitter that was right before the modem but it didn't fix the problem. I have also tested it connected directly to the coax that comes into my house in the attic and it did not make a difference with the packet loss issue.

 

Index

441718192021222324252627282930313233343536373839404142434546474844
Lock StatusLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLockedLocked
Frequency669 MHz507 MHz513 MHz519 MHz525 MHz531 MHz537 MHz543 MHz549 MHz555 MHz561 MHz567 MHz573 MHz579 MHz585 MHz591 MHz597 MHz603 MHz609 MHz615 MHz621 MHz627 MHz633 MHz639 MHz645 MHz651 MHz657 MHz663 MHz675 MHz681 MHz687 MHz722 MHz629600000
SNR37.6 dB40.4 dB40.1 dB40.3 dB40.1 dB40.5 dB40.3 dB40.1 dB40.1 dB40.1 dB40.0 dB39.8 dB39.9 dB39.7 dB39.6 dB39.5 dB39.4 dB39.3 dB39.2 dB38.9 dB38.6 dB38.5 dB38.4 dB38.2 dB38.1 dB38.0 dB38.0 dB37.7 dB36.3 dB37.6 dB37.6 dB36.2 dBNA
Power Level-10.1 dBmV-5.8 dBmV-6.0 dBmV-6.0 dBmV-6.1 dBmV-6.1 dBmV-6.2 dBmV-6.5 dBmV-6.6 dBmV-6.8 dBmV-6.7 dBmV-7.0 dBmV-7.0 dBmV-7.2 dBmV-7.2 dBmV-7.5 dBmV-7.5 dBmV-7.6 dBmV-8.0 dBmV-8.3 dBmV-8.8 dBmV-8.8 dBmV-9.2 dBmV-9.3 dBmV-9.4 dBmV-9.5 dBmV-9.6 dBmV-9.9 dBmV-10.2 dBmV-10.1 dBmV-10.1 dBmV-10.9 dBmVNA
Modulation256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAMOFDMOFDM

 

Index

1

2

3

4

5

Lock Status

Locked

Locked

Locked

Locked

Locked

Frequency

16 MHz

22 MHz

29 MHz

35 MHz

40 MHz

Symbol Rate

5120

5120

5120

5120

1280

Power Level

44.5 dBmV

46.0 dBmV

46.0 dBmV

46.3 dBmV

44.5 dBmV

Modulation

QAM

QAM

QAM

QAM

QAM

Channel Type

ATDMA

ATDMA

ATDMA

ATDMA

ATDMA

 

Index

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3

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32

Unerrored Codewords

2402457745

2091379165

2091390413

2091404469

2091423613

2091435526

2091443421

2091462037

2091510145

2091515787

2091528788

2091539440

2091537782

2091552973

2091561447

2091572271

2091633545

2091649136

2091665083

2091662655

2091672988

2091691224

2091693195

2091710211

2091718589

2091723597

2091731646

2091737367

2091755605

2091757384

2091760959

2402457745

Correctable Codewords

2120321107

10

8

9

5

14

14

9

10

9

8

7

11

7

11

8

11

2

7

11

7

10

6

8

13

12

8

2

10

2

7

2120321107

Uncorrectable Codewords

66

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

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0

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66

 

Firewall logs for last week.

FW.IPv6 FORWARD drop , 82 Attempts, 2020/9/13 23:12:17Firewall Blocked 
FW.IPv6 INPUT drop , 1161 Attempts, 2020/9/13 23:12:17Firewall Blocked 
FW.IPv6 INPUT drop , 5302 Attempts, 2020/9/13 17:58:01Firewall Blocked 
FW.IPv6 FORWARD drop , 305 Attempts, 2020/9/13 17:58:01Firewall Blocked 
FW.WANATTACK DROP , 130 Attempts, 2020/9/13 10:58:01Firewall Blocked 
FW.IPv6 FORWARD drop , 588 Attempts, 2020/9/12 17:58:01Firewall Blocked 
FW.IPv6 INPUT drop , 5412 Attempts, 2020/9/12 17:58:01Firewall Blocked 
FW.WANATTACK DROP , 1 Attempts, 2020/9/12 15:58:01Firewall Blocked 
FW.WANATTACK DROP , 9 Attempts, 2020/9/11 17:58:01Firewall Blocked 
FW.IPv6 FORWARD drop , 276 Attempts, 2020/9/11 17:58:01Firewall Blocked 
FW.IPv6 INPUT drop , 2106 Attempts, 2020/9/11 17:58:01Firewall Blocked 
FW.IPv6 INPUT drop , 7831 Attempts, 2020/9/10 17:58:01Firewall Blocked 
FW.IPv6 FORWARD drop , 479 Attempts, 2020/9/10 17:58:01Firewall Blocked 
FW.WANATTACK DROP , 4 Attempts, 2020/9/10 02:58:01Firewall Blocked 
FW.IPv6 INPUT drop , 8331 Attempts, 2020/9/09 17:58:01Firewall Blocked 
FW.IPv6 FORWARD drop , 332 Attempts, 2020/9/09 17:58:01Firewall Blocked 
FW.WANATTACK DROP , 13 Attempts, 2020/9/09 12:58:01Firewall Blocked 
FW.IPv6 INPUT drop , 7592 Attempts, 2020/9/08 17:58:01Firewall Blocked 
FW.IPv6 FORWARD drop , 539 Attempts, 2020/9/08 17:58:01Firewall Blocked 
FW.IPv6 INPUT drop , 6458 Attempts, 2020/9/07 17:58:01Firewall Blocked
Itai_H
Regular Visitor

Re: Intermittent packet loss starting in the evening.

I called Comcast and they sent a tech out.

 

Turned out a squirrel had chewed on the cable up near the pole. He replaced the line and I'm happy to report my issues seem to be resolved (it's been about 5 days).