U

Visitor

 • 

3 Messages

Fri, May 20, 2022 4:04 PM

One downstream channel with very low power and high correctable

I'm having intermittent internet issue so I took a look router status page and I found one downstream channel marked as "Other" with very low power and high correctable. Is this normal? or I should ask a tech to take a look?

Accepted Solution

EG

Expert

 • 

94.3K Messages

1分前

The downstream power is on the low weak side and it may be intermittently fluctuating even lower to out of spec levels. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels.

In an 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 5-1000 MHz, bi-directional, and no gold colored garbage from Radio Shack, Home Depot, Target, etc. Splitters should be swapped with known to be good / new ones to test.

Also check the coax cable for any damage such as cuts, nicks, kinks, sharp bends, etc.

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.


Good luck with it !

EG

Expert

 • 

94.3K Messages

1分前

Please also post the rest of the downstream channels. Post the upstream channel power level figures as well.

Visitor

 • 

3 Messages

1分前

Hi EG,

here's the rest of the downstream channels and upstream channels

Hope this helps and Thank you so much for taking a look at it. Much appreicated

Visitor

 • 

3 Messages

1分前

Hi EG,

I would like to express my gratitude and appreciation to you for helping the others in this forum. Thank you so much for your suggestions. I found out the previous owner installed two splitters from the main cable so every room in the house has cable outlet. I bet they really like to watch TV ;-) After removing all splitters and connecting the main cable directly to the modem. After doing it, the power level looks much better but there's still one outlier. I also have another random question to ask. While removing the splitter, I saw the previous owner installed a small device and it marked as "do not remove". I don't know what is it so I just follow the instruction and didn't remove it. Is it safe to leave it there or I should just remove it. Thank you

Official Employee

 • 

314 Messages

Hi, @user_25d2b1. Thank you for the update! I see that you've been working with our awesome Expert EG and that you were able to find a potential solution to the intermittent connectivity issues that you were having. With that said, how is everything working at the moment? 

 

In regard to the picture you sent, it looks like it might be a MoCA filter. MoCA filters are used at the “point of entry” ahead of the MoCA device. The purpose behind these attachments is to secure and filter any signal from neighboring DOCSIS connections nearby.

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
forum icon

New to the Community?

Start Here