5 Messages
Xfinity Internet Upload Speed Capped at 40 Mbps. Should be around 200 Mbps as part of 2000/200 gigabitx2 plan
This issue has been plaguing me for quite a long time; even upgraded the modem to a CM2000 yesterday; im getting the promised download speeds but upload speeds appear to be capped at 40mbps.
i worked on this issue with multiple technicians but they were unable to solve it. People seem to be having good luck with some good technicians here so posting the question hoping for a fruitful return.
Accepted Solution
BruceW
Gold Problem Solver
•
26K Messages
4 months ago
The CM2000 is not approved for the new higher upload speeds. See:
And especially see the "All Compatible Devices" link near the bottom of https://www.xfinity.com/support/devices (at the moment it points to https://assets.xfinity.com/assets/dotcom/projects/cix-4997_compatible-devices/2024.06.26%20Full%20List%20of%20Compatible%20Devices.pdf, but this changes from time to time).
Realize that although Comcast calls some devices "Compatible" and some "Recommended", for all but a few devices those designations only mean "compatible/recommended for use with their Internet service", and not necessarily approved for the new upload speeds.
You need one of Comcast's newer rental gateways (XB6, XB7, XB8) or one of the few retail devices shown in the "Next Gen Speed Tier" group with an upload speed rating in the "All Compatible Devices" PDF. Also see the Reddit link, which lists the approved devices as well as other requirements for faster upload speeds. Comcast could make all of this much clearer, but they have chosen not to do so.
Please be aware that there are 2 kinds of responses in this Forum: Replies and Comments. When you Comment on a post by scrolling down to "Comment on this post here...", I am notified of your response. But if you select Reply, I am NOT notified and may not be aware of your response.
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user_z4eevw
5 Messages
4 months ago
Great! Thank you very much for your extensive and thorough response. I’ve returned the cm2000 and purchased a coda56; hopefully the new device will be able to deliver the promised upload speeds.
I’ll keep the thread updated with my findings.
regards
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user_z4eevw
5 Messages
4 months ago
Bruce, thank you very much for your help with this; installed the coda56 and activated it to realise the promised speeds; about 2.33gbps down and 236mbps up on average. you've helped me solve a long standing issue with my home network! :D :D
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