11 Messages
Stuck with Previous Plan's Speeds After Upgrading to 2x
I've been on the phone and in the chat assistant for about 6 hours and I think it's time to try somewhere where I can actually write out my specific issue. Been through all of the tests they can run.
Last night I upgraded from an older gigabit plan(was getting 1400mbps-1500mbps down and 41mbps or so up) to the 2x plan. The issue I'm having is that I'm getting the exact same download and upload that I was getting on the old plan instead of the closer to 2000mbps down and 300mbps up I should be getting on the 2x plan. There's no connection drops or any problems besides the low speeds.
My current equipment set up consists of a Netgear CM1150v connected to a Mikrotik RB5009UG through 802.3ad LAG. It goes out of the two gigabit ports on the modem, then into two gigabit ports on the router, and then the PC is connected to the 2.5gbps port on the router through its 2.5gbps network card.
I'm not sure if maybe the 2x plan isn't actually available in my area and it was mistakenly listed. The modem does say that 4 of the eight upstream bonded channels and the two upstream OFDMA are not locked, from what I've been able to figure out the OFDMA are important for the increased upload.
EG
Expert
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109.8K Messages
10 days ago
The MB8600 is not compatible with their new Next Gen / mid-split /enhanced upload speeds. These are the only third-party / retail purchased devices that are currently compatible;
As are their XB6, XB7, and XB8 rented gateway devices.
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BruceW
Gold Problem Solver
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26.3K Messages
10 days ago
Is that a typo? The CM1150V is not included on their recommended/compatible list at the "All Compatible Devices" link near the bottom of https://www.xfinity.com/support/devices (at the moment the link points to https://assets.xfinity.com/assets/dotcom/projects/cix-4997_compatible-devices/2025.03.06 Full List of Compatible Devices.pdf, but this changes from time to time).
The device was still included on the 11-22-2023 version of the "Compatible" list, but does not appear on any of the later versions. When it was on the list, they rated it for use with plan speeds "Up to 948 Mbps", so even if still listed, it would not be compatible with a 2000 Mbps plan.
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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TheToob
11 Messages
10 days ago
Nope it's the real deal! The CM1150V supports at least 1500mbps with 802.3ad enabled, which is what I'm getting now. I assume with the 2x1gbps links it maxes out somewhere below 2000mbps because of overhead, but really the main thing I want is the higher upload speeds.
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BruceW
Gold Problem Solver
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26.3K Messages
10 days ago
The CM1150V isn't compatible with those either. For faster upload you must meet the requirements in https://forums.xfinity.com/conversations/customer-service/upload-speeds/677b01a7121aae71d76926bf?commentId=677b05b23423b47b4071a8d0&replyId=677bd66e7699a97c89069e62.
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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TheToob
11 Messages
10 days ago
That's all disappointing news then!
I suppose I'll keep the CM1150V with the x2 plan. As far as I can tell it's $8 cheaper than my old Gigabit Plus plan was.
Wanna say the 1100mbps plan below the x2 would be cheaper but also cut my current 1.5gbps download. So I'll avoid that unless anyone has any experience with it.
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TheToob
11 Messages
10 days ago
A quick follow up question. I see that none of those next gen speed tier modems support voice.
Is it still possible to get one modem provisioned for voice and another provisioned for data? Say keep the CM1150V for voice and get a new CODA56 for data?
I see posts where people have separate modems, but I figured I should check first to make sure it's still a thing.
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EG
Expert
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109.8K Messages
10 days ago
No they do not currently. But I have seen posts here from Comcast employees showing that an eMTA (voice capable) modem can be used in tandem.
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TheToob
11 Messages
9 days ago
So it would have to be a dedicated eMTA modem and couldn't be the one bundled into the CM1150V?
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EG
Expert
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109.8K Messages
9 days ago
@TheToob
Right. The coax line gets split. One line goes to a compatible cable modem for data (Coda56), the other line goes to the eMTA for voice service (CM1150V). The devices get provisioned separately. The eMTA (CM1150V) gets provisioned for voice service only.
(edited)
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TheToob
11 Messages
9 days ago
@EG
Thank you, I really appreciate it! I might try that at some point.
Is there any recommended communication method with Xfinity to get both provisioned? I figure it might be confusing to explain it to support over the phone or the online chat. Might be easiest on the forum here or in the Xfinity Subreddit?
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EG
Expert
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109.8K Messages
9 days ago
@TheToob
It's my pleasure ! I would use these community help forums or the Subreddit. The same corporate employees man both platforms. Good luck !
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TheToob
11 Messages
3 days ago
Howdy forumgoers, I'm looking for assistance activating my new cable modem alongside my old eMTA modem.
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EG
Expert
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109.8K Messages
3 days ago
@TheToob
Hi again ! I merged your latest post with your existing topic on the subject. And I escalated the topic. Good luck !
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TheToob
11 Messages
3 days ago
@EG
Thank you! You da best B)
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EG
Expert
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109.8K Messages
3 days ago
@TheToob
Thanks for the vote of confidence bud ! 🤝
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