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1 Message

Wednesday, September 24th, 2025

Uncorrectable Codewords / Upstream & Downstream Channel Bonding Values

Hello, 

My internet has been dropping and coming back on for the past year or so, and it seems as though it is getting worse. Initially this started when the main coaxial cable was accidentally cut. Since then, we've had three technicians come out, but the problem still persists. We are down to only one coaxial cable/port, with a single splitter on it to connect the Xfinity cable box, and the Xfinity modem. We have moved the location of the modem/cable box once already, between two different locations in the house and it hasn't made a difference. One technician recommended a Google Nest to help the Wi-Fi signal in dead spots of the house, but the issue seems to be the signal the modem is receiving itself. The internet will drop at random hours throughout the day, and come back on within a 2-5 minute window, yet the cable television seems to be unphased. 

Ideally, I'd love to have a second coaxial port so I can have ethernet near my computer, but if that is not possible with splitting the signal strength, does Xfinity install ethernet cables? 

I imagine the technicians tested the cables before installation, but I'm not exactly sure. Based off of the upstream and downstream values, do you think this could be a wiring issue with the already installed coaxial cables in the house, or an issue with the signal strength coming into the house from the utilities? 

Any advice will be greatly appreciated, thanks!  

Downstream
Channel Bonding Value
Channel ID
44
17
18
19
20
21
22
23
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
48
Lock Status
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Frequency
645 MHz
477 MHz
483 MHz
489 MHz
495 MHz
507 MHz
513 MHz
519 MHz
722000000
SNR
42.5 dB
43.8 dB
43.7 dB
43.8 dB
43.6 dB
43.5 dB
43.4 dB
43.4 dB
40.4 dB
Power Level
0.6 dBmV
2.8 dBmV
2.9 dBmV
2.8 dBmV
2.2 dBmV
1.7 dBmV
1.2 dBmV
1.3 dBmV
-2.1 dBmV
Modulation
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM

Upstream
Channel Bonding Value
Channel ID
1
2
0
0
0
0
Lock Status
Locked
Locked
Frequency
10 MHz
16 MHz
Symbol Rate
2560
5120
Power Level
40.0 dBmV
41.8 dBmV
Modulation
QAM
QAM
Channel Type
ATDMA
ATDMA

CM Error Codewords
Channel ID
44
17
18
19
20
21
22
23
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Unerrored Codewords
1550429664
155328428
171610652
171607087
171641797
171657537
171667160
171675282
171685434
3258228360
3258239081
3258247742
3258258335
3258266664
2603682175
2603691726
2603702277
2603711145
2603720506
2603729883
2603740096
2603749413
2603759476
2603768078
2603778895
2603812470
2603797155
2603824778
2603846849
2603830809
2603837244
1550429664
Correctable Codewords
1547174049
349
549
0
690
0
624
551
472
442
482
440
426
366
394
474
431
415
596
585
619
572
534
631
0
14117
708
614
634
660
525
1547174049
Uncorrectable Codewords
174487
798
1320
1679
2034
2096
1601
1385
1262
1205
1176
1099
1062
1063
1122
1082
1078
1016
1129
1195
1174
1080
961
1089
1139
35581
1339
1108
1139
1317
1259
174487
Oldest First
Selected Oldest First

Official Employee

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2K Messages

5 hours ago

Hello @CatchMySpindrift, Thanks so much for taking a moment out of your day to leave a post on our community forum and we would be happy to help. If you could send our team a direct message with your full name, the name listed on the account (if different), and the service address associated with your account, I'd be more than happy to look into this for you. To send a Direct Message, please click on the chat icon in the top-right corner of the screen, next to the bell icon, and then type or select "Xfinity Support" to initiate a direct message.

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