Xfinity Primary and OFDM Channel Errors

What is up with channel 20 (Primary) and 193 (OFDM) uncorrectable errors and why do they both have the same amount or correctable and uncorrectable errors? I had a tech out the other day and he replaced the grounding wires and barrel connectors at the pole and the house and also replaced the cable from the wall to the modem. I was having speed drops multiple times per day before he came out and that isn’t happening now but I’m concerned about the continued errors on these two channels as these were the channels causing problems originally. These errors were accumulated in a few hours after I rebooted the modem to reset the count.

Downstream	Channel Bonding Value
Channel ID	20	13	14	15	16	17	18	19	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36	37	38	39	40	41	42	43	44	193
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	543 MHz	501 MHz	507 MHz	513 MHz	519 MHz	525 MHz	531 MHz	537 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	669 MHz	675 MHz	681 MHz	687 MHz	957000000
SNR	43.8 dB	44.5 dB	44.5 dB	44.6 dB	43.9 dB	43.8 dB	43.9 dB	43.5 dB	44.3 dB	44.4 dB	44.3 dB	44.4 dB	43.8 dB	43.6 dB	43.5 dB	43.4 dB	43.3 dB	43.7 dB	43.7 dB	43.8 dB	44.1 dB	43.0 dB	41.3 dB	43.6 dB	43.9 dB	43.6 dB	43.7 dB	43.6 dB	43.7 dB	42.5 dB	43.4 dB	43.2 dB	37.0 dB
Power Level	-1.0 dBmV	0.3 dBmV	0.1 dBmV	0.3 dBmV	-1.4 dBmV	-1.4 dBmV	-1.3 dBmV	-1.7 dBmV	0.2 dBmV	0.0 dBmV	0.1 dBmV	0.1 dBmV	0.4 dBmV	-1.0 dBmV	-1.0 dBmV	-1.3 dBmV	-1.3 dBmV	0.7 dBmV	0.4 dBmV	0.3 dBmV	0.3 dBmV	0.1 dBmV	0.1 dBmV	0.1 dBmV	0.2 dBmV	0.5 dBmV	0.6 dBmV	0.5 dBmV	0.5 dBmV	0.8 dBmV	-1.0 dBmV	-1.4 dBmV	-10.1 dBmV
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	256 QAM	OFDM

*Channel ID 20 is the Primary channel

Upstream	Channel Bonding Value
Channel ID	1	2	3	4	41
Lock Status	Locked	Locked	Locked	Locked	Locked
Frequency	16 MHz	22 MHz	29 MHz	35 MHz	36 MHz
Symbol Rate	5120	5120	5120	5120	0
Power Level	40.5 dBmV	41.3 dBmV	42.3 dBmV	43.0 dBmV	38.2 dBmV
Modulation	QAM	QAM	QAM	QAM	OFDMA
Channel Type	ATDMA	ATDMA	ATDMA	ATDMA	TDMA

CM Error Codewords
Channel ID	20	13	14	15	16	17	18	19	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36	37	38	39	40	41	42	43	44	193
Unerrored Codewords	847638261	1567254930	1567259699	1567264884	1567270191	1567275507	1567280304	1567285198	1567290689	1567295372	1567300675	1567306292	1567311990	1567316264	1567322108	1567327611	1567332622	1567338198	1567342097	1567347863	1567352680	1567357499	1567363479	1567368199	1567373057	1567378056	1567384626	1567388170	1567393926	1567399148	1567399537	1567402804	847638261
Correctable Codewords	466698010	0	0	0	0	1	1	0	0	0	0	0	12	16	14	8	7	4	28	11	14	2	6	8	8	20	19	29	48	37	26	17	466698010
Uncorrectable Codewords	59996	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	10	40	25	0	0	0	0	0	0	0	0	30	0	0	59996

Responses

XfinityJeniece

Official Employee

•

3K Messages

2 years ago

Hey there, thank you so much for reaching out here on Xfinity Forums regarding your internet connection. I appreciate you providing those modem logs. Have you noticed and issues with your speeds or is the connection intermittent at all?

0

Z

zekesti9

3 Messages

2 years ago

I haven’t had any noticeable issues yet but I wanted to see if these stats indicate a possible issue as I just had a tech out the other day and I didn’t want this to become a problem.

4

0

XfinityLinda

Official Employee

•

1.8K Messages

@zekesti9 Have you double-checked your cabling inside to see if there is any damaged, or unusually kinked coaxial cables? Have you checked or swapped out any splitters connected? Also, have you looked to make sure the connection is secure and finger tight at the back of the modem and the wall? We want to make sure we rule out the more common connection issues.

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
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I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer. tick

2 years ago

0

Z

zekesti9

3 Messages

All this has been checked and there is no noticeable issues with any cables.

2 years ago

0

XfinityLinda

Official Employee

•

1.8K Messages

@zekesti9 Thank you for confirming. We'd like to take a closer look at the account and the area. For this, I'll need for you to send us a Direct Message with your name and complete service address. We look forward to your reply.

To start a Direct Message: Click "Sign in" if necessary

• Click the "Direct Message" icon (upper right corner of this page)

• Click the "New message" (pencil and paper) icon

• Type "Xfinity Support" in the to line and select "Xfinity Support" from the drop-down list

• Type your message in the text area near the bottom of the window

• Press Enter to send your message.

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer. tick

2 years ago

0

XfinityLinda

Official Employee

•

1.8K Messages

@zekesti9 We got your Direct Message, and we'll continue there for now.

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer. tick

2 years ago

0

EG

Expert

•

110.1K Messages

2 years ago

@zekesti9 @XfinityLinda

Please circle back here and post any possible solutions for the issue here in these open forums so that all readers here may benefit from the exchange / info. This is in keeping with the spirit for which these public help forums were originally intended. Thank you.

0

Your Home Network

zekesti9

Xfinity Primary and OFDM Channel Errors

XfinityJeniece

zekesti9

XfinityLinda

zekesti9

XfinityLinda

XfinityLinda

EG

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