Visitor
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2 Messages
Upgraded modem needed to get 100 mbps?
I own cm1000v2 modem. I have 1 gig down / 100 mbps plan. I am consistently getting 20mbps upload speed.
Xfinity customer service told me to get xfinity modem (of course at monthly charge) to get 100 mbps upload speed.
Is it necessary to upgrade cm1000v2? It is hard to find out exact upload speed capabilities of the modem. Even netgear doesn't clearly mention in their product sheet.
Accepted Solution
BruceW
Gold Problem Solver
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26K Messages
8 months ago
The CM1000v2 is not approved for Gigabit Internet service, nor for the new upload speeds. It's approved for wired download speeds "Up to 950 Mbps". Using devices on Internet speed tiers for which they are not approved tends to produce unexpected results.
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/2024-02-20_Full-List-of-Compatible-Devices.pdf).
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 Gigabit" or for the new upload speeds.
You need one of the devices shown with an upload speed rating in the "All Compatible Devices" PDF and the Reddit link, 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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XfinityMarcos
Official Employee
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1.8K Messages
8 months ago
Hello @user_98daa2, thank you for reaching out to our Forum for help with your Next Generation upload speed concerns. I totally get where you're coming from, those faster uploads are super exciting for our customers. I'm so glad we're working on rolling out those upgrades across our footprint. Your modem listed isn't currently compatible with our Next Gen speed upgrade, so you won't be able to access the higher uploads. Your modem may have the ability to achieve higher uploads, but only approved compatible modems will be able to achieve the higher speeds. We have a really awesome site to check on Compatible Devices, once you update your information you can scroll down to the bottom right to view a pdf of eligible devices for our Next Gen speeds. That was a mouthfull lol, so let's pause here. Did you have any questions based off that information?
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user_98daa2
Visitor
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2 Messages
8 months ago
So you are saying that the modern is capable of 100mbps (higher) but it is approved only for 20 mbps (lower) speed. Therefore, xfinity is suggesting to buy or lease new modem.
This seem like unnecessary expense for no reason.
What am I missing?
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