Visitor
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1 Message
Netgear CM2050V upload speed not performing
I have a Netgear CM2050V modem and currently have the 2000mb/300mb and am only getting 41mb upstream. A technician has come out and validated everything up to the modem. Upon researching the issues, there was a bug in the CM2050V a year ago or so. The issue was corrected and then apparently firmware was downgraded due to stability issues. The issue was to be addressed within 90 days or so. We are now a year down the road and I have this issue. Can you provide any insight? Do you just need to push an updated firmware down?
Thank you.
XfinityEva
Official Employee
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1.6K Messages
2 months ago
Hey there, thank you for taking the time to reach out to us through Forums. We can take a look at your plan make sure it is updated as well. We understand that you have previously had a tech out so we can follow up on those findings as well. Feel free to send us a direct message with your full name and service address to get started.
We also would recommend checking out the more on the enhanced speeds here.
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araposo8
Contributor
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17 Messages
1 month ago
I am seeing this same problem. About 900 down and 40 up.
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techie301
Regular Visitor
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5 Messages
30 days ago
I am seeing a similar problem with my CM2050V, using Gigabit Extra in an Enhanced Speed/Network area. I am in San Jose, CA, and my neighborhood was upgraded this past summer of 2024. My CM2050V is running firmware V10.01.03, and on Gigiabit Extra, I should receive 1300/300 (under the new plans announced on March 11, 2025). Xfinity support told me that the CM2050V is NOT approved for Enhanced, yet I have seen others on this forum receive a resolution to the new speeds. My speeds are consistently 1200/41Mbps. I have power cycled the modern, and no difference. Can I get some assistance and clarification? I really appreciate any help you can provide.
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BruceW
Gold Problem Solver
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26.3K Messages
30 days ago
The CM2050V is compatible with their Internet and home phone services, but not with the higher upload speeds they introduced in 2023. See the "Next Gen" list at the top of the "All Compatible Devices" link near the bottom of https://www.xfinity.com/support/devices (at the moment that 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).
Comcast could make all of this much simpler and clearer, but they have chosen not to do so.
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edjames
10 Messages
10 days ago
I'm in the same boat as the OP. DL speeds were good, but was only getting 40 mbps UL with my CM2050V with the older and then with the new FW. I tried a bunch of things which made no difference. Now, as of yesterday morning, I'm seeing Gigabit X2 speeds both UL and DL with my CM2050V, specifically I'm seeing 350 mbps UL.
The changeover in speed occurred after I tried to activate a Hitron Coda56 modem on my service. After an hour of trying to self-activate and then another hour of working with Comcast support, I was not able to get it activated because apparently, a non-voice modem cannot be activated on a service that has voice. I don't know if it was going through the process of trying to get the Coda56 activated, or whether it was due to having the CM2050V unplugged for a few hours, but after I reattached the CM2050V, I surprisingly found that UL speeds were 350 mbps from an etherneted computer and just under 300 mbps from a wifi 5 computer.
I am a little worried that something will happen to cause the UL speed to drop again to 40 mbps because something similar happened when I first upgraded to the X2 service with the CM2050V modem back in November. Initially UL speeds were 80-90 mbps immediately after upgrading to the X2 service, and then after a few weeks or maybe a few months, UL speed dropped to 40 mbps.
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NetGeekJay
Visitor
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4 Messages
5 days ago
Got excited that perhaps new 2050V firmware was available, but I'm on the same V10.01.03... still stuck at 40Mbs up. Oh well. Guess I'll get a CODA56 and try swapping to it, then back to the 2050V since I need those Voice breakout ports. If we were to ever have an extended AT&T 5Gbs/5Gbs Fiber outage, guess I could swap to the CODA56 and do without Voice for a few hours/days.
I'd much rather just use my 2050V and get the 300Mbs upload speed.
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