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.
Solved! Go to Solution.
Start here;
https://forums.xfinity.com/t5/Your-Home-Network/Internet-Troubleshooting-Tips/m-p/3310447#M316652
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'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 | 44 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 45 | 46 | 47 | 48 | 44 |
Lock Status | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked |
Frequency | 669 MHz | 507 MHz | 513 MHz | 519 MHz | 525 MHz | 531 MHz | 537 MHz | 543 MHz | 549 MHz | 555 MHz | 561 MHz | 567 MHz | 573 MHz | 579 MHz | 585 MHz | 591 MHz | 597 MHz | 603 MHz | 609 MHz | 615 MHz | 621 MHz | 627 MHz | 633 MHz | 639 MHz | 645 MHz | 651 MHz | 657 MHz | 663 MHz | 675 MHz | 681 MHz | 687 MHz | 722 MHz | 629600000 |
SNR | 37.6 dB | 40.4 dB | 40.1 dB | 40.3 dB | 40.1 dB | 40.5 dB | 40.3 dB | 40.1 dB | 40.1 dB | 40.1 dB | 40.0 dB | 39.8 dB | 39.9 dB | 39.7 dB | 39.6 dB | 39.5 dB | 39.4 dB | 39.3 dB | 39.2 dB | 38.9 dB | 38.6 dB | 38.5 dB | 38.4 dB | 38.2 dB | 38.1 dB | 38.0 dB | 38.0 dB | 37.7 dB | 36.3 dB | 37.6 dB | 37.6 dB | 36.2 dB | NA |
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 dBmV | NA |
Modulation | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | OFDM | OFDM |
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 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 66 |
Firewall logs for last week.
FW.IPv6 FORWARD drop , 82 Attempts, 2020/9/13 23:12:17 | Firewall Blocked | |
FW.IPv6 INPUT drop , 1161 Attempts, 2020/9/13 23:12:17 | Firewall Blocked | |
FW.IPv6 INPUT drop , 5302 Attempts, 2020/9/13 17:58:01 | Firewall Blocked | |
FW.IPv6 FORWARD drop , 305 Attempts, 2020/9/13 17:58:01 | Firewall Blocked | |
FW.WANATTACK DROP , 130 Attempts, 2020/9/13 10:58:01 | Firewall Blocked | |
FW.IPv6 FORWARD drop , 588 Attempts, 2020/9/12 17:58:01 | Firewall Blocked | |
FW.IPv6 INPUT drop , 5412 Attempts, 2020/9/12 17:58:01 | Firewall Blocked | |
FW.WANATTACK DROP , 1 Attempts, 2020/9/12 15:58:01 | Firewall Blocked | |
FW.WANATTACK DROP , 9 Attempts, 2020/9/11 17:58:01 | Firewall Blocked | |
FW.IPv6 FORWARD drop , 276 Attempts, 2020/9/11 17:58:01 | Firewall Blocked | |
FW.IPv6 INPUT drop , 2106 Attempts, 2020/9/11 17:58:01 | Firewall Blocked | |
FW.IPv6 INPUT drop , 7831 Attempts, 2020/9/10 17:58:01 | Firewall Blocked | |
FW.IPv6 FORWARD drop , 479 Attempts, 2020/9/10 17:58:01 | Firewall Blocked | |
FW.WANATTACK DROP , 4 Attempts, 2020/9/10 02:58:01 | Firewall Blocked | |
FW.IPv6 INPUT drop , 8331 Attempts, 2020/9/09 17:58:01 | Firewall Blocked | |
FW.IPv6 FORWARD drop , 332 Attempts, 2020/9/09 17:58:01 | Firewall Blocked | |
FW.WANATTACK DROP , 13 Attempts, 2020/9/09 12:58:01 | Firewall Blocked | |
FW.IPv6 INPUT drop , 7592 Attempts, 2020/9/08 17:58:01 | Firewall Blocked | |
FW.IPv6 FORWARD drop , 539 Attempts, 2020/9/08 17:58:01 | Firewall Blocked | |
FW.IPv6 INPUT drop , 6458 Attempts, 2020/9/07 17:58:01 | Firewall Blocked |