Internet Unstable errors on Zoom, Pixelated broadcast channels

For the past several months I have noticed pixelation on some local broadcast channels. This occurs on live TV as well as recordings. I also have been receiving "Internet Unstable" errors on Zoom. Generally I use the mobile app to reset the TV box and/or power cycle the router.

On the router I see what appears to be high CM Error Codeword values. I'm using a direct Ethernet connection to the router when using Zoom. Could these be related?

CM Error Codewords
Channel ID	28	1	2	3	4	5	6	7	8	9	10	11	12	12	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Unerrored Codewords	3809315477	204153689	204171543	204171543	204222989	204191667	204194099	204194099	204229315	204250405	204255386	204266835	204320424	204278912	204290521	3762197196	3762206369	3762214406	3762205980	3762227544	3762297734	3762245560	3762258920	3762265322	3762271965	3762281855	1798705405	1798719457	1798733008	1798735108	1798740001	1798743691	3776717023	3809315477
Correctable Codewords	2929280632	1	1	1	1	0	0	0	0	1	1	1	1	1	2	2	2	1	0	1	1	2	1	1	2	1	0	1	1	1	1	2	2857826519	2929280632
Uncorrectable Codewords	27	0	0	0	0

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EG

Expert

•

110K Messages

2 days ago

What do the modem's signal status values look like ?

Please copy all of the text in its entirety of the *Downstream Power Levels*, the *SNR's* (Signal to Noise Ratios), and the *Upstream Power Level* numbers and paste them into your next post.

2

0

I

indiapeloale

Visitor

•

2 Messages

EG - Huge thanks for the help. Data is below

Channel Bonding Value
Channel ID	28	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	0	0	0	0	0	0	0	0	0	0	0	193	194
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
Frequency	543 MHz	381 MHz	387 MHz	393 MHz	399 MHz	405 MHz	411 MHz	417 MHz	423 MHz	429 MHz	435 MHz	441 MHz	447 MHz	447 MHz	459 MHz	465 MHz	471 MHz	477 MHz	483 MHz	489 MHz	495 MHz	501 MHz	507 MHz												722000000	957000000
SNR	45.1 dB	45.8 dB	45.6 dB	46.0 dB	45.8 dB	45.8 dB	45.2 dB	45.5 dB	45.1 dB	45.3 dB	45.6 dB	45.5 dB	45.4 dB	45.6 dB	45.7 dB	45.7 dB	45.7 dB	45.7 dB	45.7 dB	45.5 dB	45.3 dB	45.3 dB	45.4 dB												42.8 dB	39.9 dB
Power Level	2.9 dBmV	3.5 dBmV	3.5 dBmV	3.6 dBmV	3.5 dBmV	3.4 dBmV	3.5 dBmV	3.1 dBmV	2.3 dBmV	2.7 dBmV	3.2 dBmV	2.9 dBmV	3.0 dBmV	3.4 dBmV	3.6 dBmV	3.7 dBmV	3.7 dBmV	3.7 dBmV	3.6 dBmV	3.6 dBmV	3.2 dBmV	3.2 dBmV	3.3 dBmV												-1.4 dBmV	-3.9 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

Upstream	Channel Bonding Value
Channel ID	17	18	19	20	43
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	48.5 dBmV	48.5 dBmV	48.5 dBmV	48.5 dBmV	48.5 dBmV
Modulation	QAM	QAM	QAM	QAM	OFDMA
Channel Type	ATDMA	ATDMA	ATDMA	ATDMA	TDMA

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2 days ago

0

XfinityWilliam

Official Employee

•

1.2K Messages

indiapeloale

I'm sorry to hear about the issues you're experiencing. Let's break down the possible causes and solutions for each problem.

Pixelation on Local Broadcast Channels

Pixelation can be caused by several factors:

Signal Strength: Weak signal strength can lead to pixelation. Ensure all cables are tightly connected and undamaged.
Weather Interference: Bad weather can disrupt signals. If pixelation occurs during storms, this might be the cause.
Outdated Equipment: Older TV models or outdated software can struggle with digital signals. Ensure your TV and set-top box are up to date.
Internet Connection: If you're streaming, a poor internet connection can cause pixelation. Switching to a wired connection might help.

"Internet Unstable" Errors on Zoom

This issue can be related to several factors:

Network Congestion: Multiple devices using the same network can cause instability. Try reducing the number of active devices.
Router Issues: Restarting your router can sometimes resolve connectivity issues. Ensure your router firmware is up to date.
Network Settings: Running a network troubleshooter can help identify and fix issues.

High CM Error Codeword Values

High CM Error Codeword values indicate issues with your internet connection:

Signal Quality: Check for any damage or loose connections in your coaxial cables. Ensure there are no splitters causing signal degradation.
Power Levels: High or low power levels can cause errors. Adding an attenuator might help balance the signal.
Noise Ingress: Keep electronic devices away from coaxial connections to reduce interference.

Possible Relationship

The pixelation and Zoom errors could be related if both are caused by poor signal quality or network issues. Addressing the signal quality and ensuring stable network connections should help resolve both problems.

If these steps don't resolve the issues, we can take a closer look.

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Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
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6 hours ago

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Your Home Network

indiapeloale

Internet Unstable errors on Zoom, Pixelated broadcast channels

EG

indiapeloale

XfinityWilliam

Pixelation on Local Broadcast Channels

"Internet Unstable" Errors on Zoom

High CM Error Codeword Values

Possible Relationship

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