Unusual high data usage and unidentified devices connected to your network?

What you need is a MoCA filter between your coax cable and your router/gateway!!!!!!!
This MoCA problem exists especially in multi-home buildings where all subscribers are hooked on to the same connection. Xfinity gateways are MoCA enabled this sends a signal into the coax lines letting ALL devices talk to each other. So your neighbor unknowingly taps into your data!

I had this problem where my usual 200gb usage suddenly spiked to over 1gb and I had devices connected to my network which were not mine. When I logged into my gateway’s admin, I suddenly was in someone else’s router and I could see all their settings.

After some research on the internet, I came across the MoCA issue with Xfinity and I aquired an MoCA filter, installed it, reset my gateway and it immediately solved all my issues!!!!

Xfinity should know about this issue and give each subscriber a filter with their modem. Denying this issue and just telling subscribers to change their passwords or sign up for faster service is not the solution!!!!!

Responses

EG

Expert

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107.1K Messages

1 year ago

@Seastar_2000

Yep ! This is quite a common problem here lately.... Thanks for sharing your advice with the community ! I'm going to pin your topic to the top of this board in the hopes that others will see it and be helped by it. Thanks again ! 😊

user_987144

Visitor

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1 Message

10 months ago

Dors this solution apply regardless if a customer is using comcast router and modem or their own purchased equipment? Also, where is this equipment installed within the system? My internet use was 10GB while sleeping last night and almost doubled in my house with only two of us and no gaming. I'm so frustrated right now. Hoping your suggested fix works for me! Thank you!!!!

Seastar_2000

8 Messages

This filter simply installs between your coax cable and your modem.
But this is only for Xfinity modems which have MoCA installed and active. Most non-provider modems do not have MoCA installed so there’s no need for that filter as those modem dont recognize those signals which transmit on a certain frequency.

However … this was a only a temporary fix as on January 2 when I started a new billing cycle I noticed a data usage of 20GB during the day when I wasn’t even at home.

I put an end to all this by purchasing my OWN modem “gateway” and returned the provider-supplied gateway. Not only I’m no longer paying equipment rental fees, I no longer have mysterious data usage on my network … but I’ll keep my fingers crossed and will update as needed!

interstingly, when I returned my modem, the Xfinity guy asked me for the reason of return and I said that your equipment has serious security issues and I explained what had happened. He smiled and nodded like he wanted to agree but wasn’t allowed to speak about it.

So let’s see how this goes! Ugh!

(edited)

10 months ago

XfinityArmand

Official Employee

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1.8K Messages

Hi there @user_987144! Where your gateway is Xfinity issues or not, that should definitely help with this issue. We are glad to take a closer look at this for you. Please feel free to shoot us a private message so that we can get started.

To send a "direct message" / "private message" message to Xfinity Support:

• Click "Sign In" if necessary

• Click the "Direct Message" icon or https://forums.xfinity.com/direct-messaging

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

• The "To:" line prompts you to "Type the name of a person". Instead, type "Xfinity Support" there

• - As you are typing a drop-down list appears. Select "Xfinity Support" from that list

• - An "Xfinity Support" graphic replaces the "To:" line

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

• Press Enter to send it

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Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
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10 months ago

user_zbn4eq

1 Message

9 months ago

I really hate that the only way to get unlimited data is with the notoriously insecure Xfinity hardware....as we see here, it's very easy to access someone else's device settings (and much more with a teensy bit of knowledge).

user_noname

Contributor

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168 Messages

@user_zbn4eq - you don't have to have an Xfinity Gateway to get an unlimited data.

See - https://www.xfinity.com/support/articles/exp-unlimited-data

Option 1: You can purchase the Unlimited Data Option.

[The 1.2 TB data plan is currently not applicable in our Northeast markets, including CT, DE, MA, MD, ME, NH, NJ, NY, PA, VA, VT, WV, the District of Columbia, and parts of NC and OH.]

9 months ago

Your Home Network

Seastar_2000

Unusual high data usage and unidentified devices connected to your network?

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EG

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XfinityArmand

user_zbn4eq

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