Rise in latency every 10-12 minutes

Every 10-12 minutes our internet's latency spikes upwards towards 2000ms. We are using the XB6. Have reset it numerous times. Changed cords and even tried different cable outlets. Still the same result. Internet speed is fine but when it comes to gaming it is very difficult. I even turned off the wifi and left only my xbox and laptop connected via ethernet to make sure we weren't overwhelming it. Still happened. This started happening when we move into a new house back in July. We kept the same equipment and plan at the old house but this was never an issue.

Responses

Accepted Solution

BruceW

Gold Problem Solver

•

26.4K Messages

2 years ago

... I'm starting to believe it has something to do with bad coax cables ...

Could be, but whatever is happening did not reveal itself in the stats you posted. Signal levels, SNR, and error counts all look good, although intermittent interference and/or problems farther upstream are still possible. The event log, as you noted, doesn't help us because Comcast pretty much gutted it from their gateways. I can only suggest you have them check things out.

Wish I had better news for you. Good luck!

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BruceW

Gold Problem Solver

•

26.4K Messages

2 years ago

... latency spikes upwards towards 2000ms ... XB6 ...

Network connection problems that affect both Ethernet and Wifi devices are often due to poor coax connections or damaged coax cable, usually in or near your home. Running the cable through a surge protector, a defective splitter, or too many splitters can cause signal problems as well. If there is an amplifier in the line make sure it's getting power.

If you want to troubleshoot this yourself, please see Internet Troubleshooting Tips. If you still need help, please post your Internet plan speed and the following information from your gateway (from http://10.0.0.1):

downstream: power levels and SNR (or MER) for all channels, error counts, and uptime
upstream: power levels for all channels
event log, if available (Be sure to remove or blot out any MAC addresses. Forum security processing considers them "personal information" and may prevent the event log from posting if these are present.)

Copy and pasted text is preferred over images. Be aware that, if you post any images, your message will be made Private for a time, as all images must be approved by the Forum Moderators before the messages containing them become generally visible.

If you can't find the problem or you'd rather have Comcast take care of it and an employee does not respond to your message here, call them at the phone number on your bill or 1-800-Comcast, or use one of the options on https://www.xfinity.com/support/contact-us/. It's not likely they can fix the problem remotely. If not, insist they send a tech out to identify the cause and correct it.

If the tech finds bad coax, splitters, amplifiers, or connections in your home (even if Comcast originally supplied them) you'll probably have to pay for the visit ($70-$100) unless you have their Service Protection Plan ( https://www.xfinity.com/support/articles/service-protection-plan, closed to customers that don't already have it). If the trouble is due to a faulty Comcast rental device or anything outside your home you shouldn't be charged.

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(edited)

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U

user_298179

2 Messages

2 years ago

Thank you for your response and help. I'm starting to believe it has something to do with bad coax cables. We currently have the 1000 download and 100 upload plan.

Downstream

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	23	24	25	26	27	29	30	31	32	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	597 MHz	435 MHz	441 MHz	447 MHz	453 MHz	459 MHz	4 65 MHz	471 MHz	477 MHz	483 MHz	489 MHz	495 MHz	501 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	603 MHz	609 MHz	615 MHz	621 MHz	957000000
SNR	43.8 dB	44.4 dB	44.4 dB	44.4 dB	44.1 dB	43.7 dB	44.0 dB	44.0 dB	43.7 dB	43.7 dB	43.8 dB	43.8 dB	43.8 dB	44.0 dB	43.9 dB	43.8 dB	43.9 dB	43.9 dB	43.7 dB	44.0 dB	44.0 dB	43.9 dB	43.4 dB	43.9 dB	43.9 dB	43.6 dB	43.5 dB	44.0 dB	44.0 dB	43.9 dB	43.7 dB	43.5 dB	41.7 dB
Power Level	0.0 dBmV	0.3 dBmV	0.3 dBmV	0.3 dBmV	0.1 dBmV	0.7 dBmV	0.3 dBmV	0.4 dBmV	0.6 dBmV	0.6 dBmV	0.3 dBmV	0.7 dBmV	0.6 dBmV	0.2 dBmV	0.2 dBmV	0.5 dBmV	0.3 dBmV	0.0 dBmV	0.3 dBmV	0.1 dBmV	0.1 dBmV	0.2 dBmV	0.5 dBmV	0.1 dBmV	0.2 dBmV	0.3 dBmV	0.1 dBmV	0.3 dBmV	0.1 dBmV	0.1 dBmV	0.2 dBmV	0.4 dBmV	0.5 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

Upstream

Channel ID	17	18	19	20
Lock Status	Locked	Locked	Locked	Locked
Frequency	16 MHz	22 MHz	29 MHz	35 MHz
Symbol Rate	5120	5120	5120	5120
Power Level	42.3 dBmV	43.3 dBmV	43.8 dBmV	44.8 dBmV
Modulation	QAM	QAM	QAM	QAM
Channel Type	ATDMA	ATDMA	ATDMA	ATDMA

CM Error CodeWords

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	23	24	25	26	27	29	30	31	32	193
Unerrored Codewords	322691462	2638825113	2638831820	2638821017	2638844041	2638847801	2638853009	2638859171	2638862986	2638868129	2638872872	2638878817	2638884433	2638889935	2638895315	2638901570	2638906324	2638911706	2638917096	2638922166	2638929023	2638934207	2638939229	2638944750	2638949639	2638955177	2638960376	2638964751	2638970962	2638975741	2638993993	2638975772	322691462
Correctable Codewords	172088424	6	2	7	10	19	23	14	18	18	17	18	20	22	23	31	44	33	40	38	57	59	82	94	111	129	80	65	76	93	129	132	172088424
Uncorrectable Codewords	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	0	0	0

Recently reset the gateway last night so I'm not sure if that will have an effect on the numbers above. My event log doesn't give me the details you're requesting. It is only showing things like

[Wifi][8904]: WiFi radio Radio1 is set to UP

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XfinityLinda

Official Employee

•

1.8K Messages

Thanks for the assistance, @BruceW!

@user_298179 It sounds like you could be right since you didn't have the issues at your previous address. Please let us know if you would like to schedule a tech or will you be changing the cabling yourself.

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2 years ago

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Your Home Network

user_298179

Rise in latency every 10-12 minutes

BruceW

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BruceW

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user_298179

XfinityLinda

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