Visitor

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3 Messages

Saturday, September 27th, 2025

Slow internet speed

I'm paying for the 300 mbps but my speeds are only showing up as 79-88 mbps. Why are my speeds so slow? I ran tests on my tv via ethernet and wifi and both were slow. I can't connect my laptop to the ethernet to check that. I unplugged the router and plugged it back in and have reset the tv and computer several times and my speeds are still 1/3 what I'm paying for. I have my own personal router, not an Xfinity provided one. Please advise on how to fix this. Thank you!

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Official Employee

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2.8K Messages

8 days ago

 

user_7nkmj1 - Hello and thank you for reaching out to us here for help to troubleshoot your internet speeds! We very much appricate you sharing the steps you've taken so far. I know I'd be wondering that same thing and reacing out too! Unplugging and restarting your equipment are all great steps to take. Testing the equipment on mulitple devices can help narrow things down as well. Have you ruled out it being a bandwidth issue? How many connected devices are up and running on your home network? With an Xfinity Gateway and the Xfinity app it makes it easy to check! Xfinity App > Wifi > Scroll down to see connected devices as well as the total number of devices that are not currently connected? What's those number looking like when you take a peek? 

 

Visitor

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3 Messages

8 days ago

My app doesn’t show me any devices that are currently connected. There’s no option in the app for me to find that

Official Employee

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2.8K Messages

No worries! Thank you for being our eyes and ears on the other end. user_7nkmj1 What make/model modem are you using and how many connected devices would you say are up and running? Are there multiple devices streaming, gaming, or uploading large files at the same time? Have you tried swapping out your ethernet cable? Where is the modem located in your home? We'll get to the bottom of this!

 

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Visitor

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3 Messages

I have 1 tv running at a time (3 total), 2 security cameras inside running all day and 3 Alexa products. I have a NetGear NightHawk X4 router. The model number is C7500. Usually only have 1 laptop running on the internet at a time. The Ethernet cords aren’t old but if that could help, I’ll definitely replace them. The router is located on my tv stand in the living room. 

Official Employee

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2.4K Messages

Hi there, @user_7nkmj1 Thank you for your time today. Are there any splitters attached to the line that is connected into your modem?-Richard

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

Expert

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113.7K Messages

7 days ago

Concern moved here to the Home Networking help section.

Gold Problem Solver

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26.8K Messages

7 days ago

... NetGear NightHawk X4 router. The model number is C7500 ...

The C7500 was dropped from Comcast/Xfinity's "compatible" list about 3 years ago, and the product's support page at https://www.netgear.com/support/product/c7500/ says "This product/software is end-of-life". Using devices which are no longer compatible tends to produce unexpected results. 

Follow the "See all modems" link near the bottom of https://www.xfinity.com/support/internet/customerowned to see their lists of compatible devices. 

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(edited)

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