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user_ad21c9
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Saturday, December 4th, 2021

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Why is my download speed is locked at maximum 15 Mbps when my plan is for 120 Mbps?

I've been trying this over a direct-wired connection to the modem and it's been consistent over several weeks, and across different days/times/devices.  It always runs right up to 15, and then stops.

I've got a CGM4331COM modem that was just installed. I'm paying for the highest internet plan plan and it seems like a waste of money for the speed I'm getting.

Can I get a someone from Comcast to try and resolve this issue?

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4 years ago

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EG

Expert

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112.9K Messages

4 years ago

What speed do you get here ?: https://speedtest.xfinity.com/ 

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user_ad21c9

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@EG the test gave me 240.5 Mbps on a wired and a phone/wifi connection.

However, it seems I can only get that speed when doing a test. Everything else maxes out at 15 Mbps.

edit: speed test of the pc was 260.0 Mbps

(edited)

4 years ago

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CC_Tony

Retired Employee

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1.4K Messages

@user_ad21c9 Thank you for your post! Your screenshot is measuring in Mebibytes (MiB) per second. ISP like ourselves use Megabits (Mb) per second instead I've supplied the appropriate conversions below:

 

15.4 Mib/s = 16.1 MBps = 128.8 Mbps

 

I would check to see if you can change the display units. Many file transfer programs default to bytes instead of bits. 

4 years ago

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EG

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112.9K Messages

@user_ad21c9

You're all set. 

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.

Was your question answered? Please mark an Accepted Answer!tick

4 years ago

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