Visitor

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2 Messages

Thursday, July 24th, 2025

proxy settings, does Xfinity block Ookla speed tests? I'm able to run speed tests on any other internet connection, even my alt wall prov.

Hello there,

For some time now, I've been having misc. issues with Xfinity; to the point where I've considered switching all together despite having a "promotional" offer. I've tried to search these forms about speed tests and other related speed issues, but none fit my description. I'm trying to speed test using Ookla, which is better for troubleshooting and finding out which servers are having issues with each other. I've made sure my proxy settings are allowing of Ookla's services. However, even when using my domain tunneling system; to, access the internet through my own domain: this should theoretically erase any issues with Xfinity poisoning my DNS queries or blocking my access to sites. However, I'm still having issues. Support isn't helping. I've deactivated Security Edge (now named "advanced security" under the home tab, so [Edited: "Language"] dumb) in the past, and that used to be my issue; my devices were just getting blocked all together. Support was claiming someone was trying to use a lot of data. Yeah, it was me trying to figure out why I'm not getting the speed I paid for. Now, it seems I can't even use other speed test tools reliably. I'm now getting automated emails, probably as evidence for later if I ever file an FTC complaint about false marketing or something like that; where they are claiming I'm getting my advertised speed. Sure buddy, the gateway is getting 2.5gig from the wall. But my brand new Mac mini right out of the box with an Intel (Apple bought their networking business) Gig LAN and it can barely push 600mbps with no other network services running, on device, and all other devices shut off. 

I'm not sure if anyone else has any ideas, because I'm fresh out of them. lol xd 

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Official Employee

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1.4K Messages

7 days ago

 

user_p6d3ss I appreciate you creating a post on our Community Forums. There wouldn't be any restriction on using a different speed test website. Just to clarify, have you tried running a speed test with a hardwired connection to your modem as well? 

 

Visitor

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2 Messages

@XfinityThomasD​ Yes, with intermittent results. These are the results shown. I was thinking my speed problems were due to congestion because a lot of people have moved into my apartment recently, and wireless jamming is a thing. However, even when using a hardwired connection my speeds are still failing to reach close to gig speeds; in best case scenarios. 

Additionally, because of advanced security and the potential of DNS poisoning; lookup failures; blocking; and slowdowns; I tunneled my internet connection through my own domain. It used to work fine, it was actually amazing; and, I was able to use all of my 2.3Gbps bandwidth Up/Down with now issues. 

The usual culprits that I have tried to snuff out haven't worked, like: making sure your devices are updated, replacing old devices that are obsolete, disconnecting or turning off devices you don't use as much, performing regular application updates, scheduling router/gateway reboots, etc.

More speed tests below with a graph trend, and note: these tests were done with a Gigabit LAN Card or WiFi 6E Adapter, where speeds of at least 800-900mbps are expected. The theoretical speed for WiFi 6 is 1000mbps-1300mps, but only in best case scenarios with no interference. 

SpeedTest Results for Xfinity

Speedtest by Ookla - The Global Broadband Speed Test

Speedtest by Ookla - The Global Broadband Speed Test

Speedtest by Ookla - The Global Broadband Speed Test

Speedtest by Ookla - The Global Broadband Speed Test

Speedtest by Ookla - The Global Broadband Speed Test

Speedtest by Ookla - The Global Broadband Speed Test

Speedtest by Ookla - The Global Broadband Speed Test

Speedtest by Ookla - The Global Broadband Speed Test

Speedtest by Ookla - The Global Broadband Speed Test

Speedtest by Ookla - The Global Broadband Speed Test

Speedtest by Ookla - The Global Broadband Speed Test

Speedtest by Ookla - The Global Broadband Speed Test

Speedtest by Ookla - The Global Broadband Speed Test

Speedtest by Ookla - The Global Broadband Speed Test

Speedtest by Ookla - The Global Broadband Speed Test

Official Employee

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1.5K Messages

Thanks for those details, @user_p6d3ss. Let's check out the signal and area health. Please send a direct message to us by clicking the chat icon in the upper right corner of the page, click on the pen and paper icon, then enter “Xfinity Support” in the “To” section. Please include your full name and complete street address to get started. 

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