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Slow connection speeds

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Regular Visitor

Slow connection speeds

I recently changed my internet plan from 200 meg to 1000 meg because of frequent connection lagging. After upgrading and doing speedtests I was not getting anything above 40 meg for download. I have my own modem and was told my Docsis 3.0 modem MB7621 only supports up to 845 meg downloads. So i purchased a MB8600 modem and installed it this week. I spent a couple hours on the phone with Comcast support since i am not getting anything higer than 200 meg when i do a speedtest. I am seeing 34 meg upload. they finally told me i needed to reach out to Motorola since it is my own equipment. when i look at my modem connections this is what i see

 

 

Capture.PNG

 

 

I noticed these events showed up in my event log last nightevent.PNG

 

 

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Expert

Re: Slow connection speeds

Can't see your pics. Since you are a new poster, they need to be approved by a Forum Admin. That could take some time. In the interim, you could try hosting them at one of those free third-party pic hosting sites like Imgur or Photobucket and post the link to them here.



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Re: Slow connection speeds

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Expert

Re: Slow connection speeds

Please post the upstream channel numbers as well.



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I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
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Re: Slow connection speeds

Upstream channels

incase my image doesnt show like the downstream and event log

https://imgur.com/a/j26dGce

 

upstream.PNG

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Expert

Re: Slow connection speeds

The upstream power too high  and it may be intermittently fluctuating even higher to out of spec levels. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, and latency problems.

In a self troubleshooting effort to try to obtain better connectivity / more wiggle room, check to see if there are there any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1002 MHz, bi-directional, and no gold colored garbage types like GE, RadioShack, RCA, Philips, Leviton, Magnavox, and Rocketfish from big box stores like Home Depot, Lowes, Target, Wal-Mart etc. Splitters should be swapped with known to be good / new ones to test

If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two way splitter connected directly off of the drop from the street/pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed, and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.



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I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
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Regular Visitor

Re: Slow connection speeds

EG,

 

I changed my connection going to the modem. I am averaging around 200 meg download and 40 meg upload

 

Here are the new and original images from my modem

https://imgur.com/a/y7dvVqO