Visitor

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2 Messages

Sunday, November 2nd, 2025

2 Gig Below Expected

hello. I recently switched to 2 gig internet with the xB8-T gateway and never see speeds above ~700mbps. What could be causing the speed to be less than half the advertised speeds? Thank you

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Official Employee

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2.5K Messages

14 hours ago

That is a great question @user_63s34r and thank you for reaching out via our Xfinity Community Forums about this concern. Are you testing the speed of your Wi-Fi network or are you hardwired into your gateway? The reason for this speed limit is usually your connection type, which is why we ask: Are you testing the speed of your Wi-Fi network or are you hardwired into your gateway?

  • Wi-Fi Speed: Most devices (even new ones) will see maximum speeds lower than 2 Gig over Wi-Fi due to device limitations, distance, and interference. Getting 700 Mbps is common on the fastest Wi-Fi bands.

  • Wired Speed: To see speeds above 1 Gigabit (1000 Mbps), your testing device must be plugged into the 2.5 Gbps Ethernet port (the one with the colored stripe on the back of the xB8-T) and your computer must have a 2.5 Gbps network card installed.

If you are using the correct hardware and are still capped around 700 Mbps, please power-cycle the gateway by unplugging it for 60 seconds.

 

If that doesn't fix it, please send us a Direct Message with your full name and address, so we can check the signal to your home.

Visitor

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2 Messages

Good to know. Thanks for the explanation. I was on WiFi. I will check a wired connection. 

Official Employee

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2.5K Messages

You're welcome. Please reach out if you still need assistance. 

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