Visitor
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2 Messages
Not getting advertised uplink speed.
Own Cable Modem: Netgear CM1000v2
Plan: 800/100
Am able to get 800+ downlink but uplink is stuck around 25.
Chatted with agent and was mentioned that 100Mbps uplink will only be available if I rent the Cable modem from them. Is it a true statement?
BruceW
Gold Problem Solver
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26.3K Messages
1 year ago
There are a few retail devices approved by them for higher upload speeds, but the CM1000 is not one of them. See:
Also 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/2023.11.22%20Full%20List%20of%20Compatible%20Devices.pdf).
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BruceW
Gold Problem Solver
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26.3K Messages
1 year ago
Realize that although Comcast calls some devices "Approved" and some "Recommended", for all but a few devices those designations only mean "approved/recommended for use with their Internet service", and not necessarily "approved for the new higher upload speeds". For 100 Mbps upload you need one of the devices shown with an upload speed rating in the .PDF and the Reddit links, which also lists other requirements for those 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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artermis-1024
1 Message
1 year ago
The CM1000v2 is certainly, on a technical level, capable of 100Mbps upload speed. Why isn't XFinity able to support that?
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user_noname
Contributor
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168 Messages
1 year ago
@BruceW - Xfinity just published an updated list and added one new CM to "Next Gen Speed Tier" list.
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