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user_o4rb0s
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5 Messages

Sunday, June 1st, 2025 4:02 PM

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Upload speed capped at 40Mbps even after switching to CODA56

I'm on the connect more plan. According to the plan, my upload is supposed to be around 100Mbps. I was using Motorola MG7550 and the upload was capped at 40Mbps, so I thought it was due to my modem. I just switched to the Xfinity recommended modem -- CODA56. After activating it, I'm still seeing 40Mbps upload speed. Searching through this forum, I'm assuming Xfinity needs to send some "update instructions" to my modem so the upload speed can be unlocked.

Please help.

Question

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Updated 

2 days ago

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Accepted Solution

user_o4rb0s

Visitor

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5 Messages

2 days ago

After DM the support, they helped me to correctly recognize my CODA56 modem in their system and now I'm getting 150Mbps upload. Thank you.

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EG

Expert

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110.8K Messages

3 days ago

First, try power-cycling / rebooting it. Unplug it from the AC power outlet. Wait 25-30 seconds. Power it back on and wait for it to fully sync up. Any joy ?

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user_o4rb0s

Visitor

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5 Messages

Nope. Unplugged for a few minutes and then plugged in. No luck. Still capped at 40.

3 days ago

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train_wreck

Contributor

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56 Messages

I had this issue as well switching from an Arris to the Hitron 56, there is a special higher upstream boot file that needs to be applied, only a Comcast rep can do it. One of the official reps will probably reply back here or message you privately soon. Good luck!

(edited)

2 days ago

user_o4rb0s

Visitor

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5 Messages

Yes. That's my understanding too. That's why I'm posting here. Thank you!

2 days ago

0

EG

Expert

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110.8K Messages

2 days ago

Ok @user_o4rb0s 

You need to know if your area's infrastructure has yet been upgraded to their mid-split system for the Next-Gen speeds. Have you ever received an E-mail stating so ? Sometimes the cart gets put before the horse. If it has, then the issue is likely to be what @train_wreck stated.

(edited)

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user_o4rb0s

Visitor

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5 Messages

Yea I think my area has that. I searched my address at https://www.xfinity.com/broadband-labels and it shows Gigabit X2 available (which means it's upgraded IIRC). And my tier (connect more) clearly shows "Typical upload speed 169.62 Mbps".

Thank you!

2 days ago

0

EG

Expert

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110.8K Messages

@XfinityThomasC @user_o4rb0s 

This is the Community Forums platform, not Reddit. To send a direct message (private message) on this platform;


Click "Sign In" if necessary.
 
Click the "Direct Message" icon  in the upper right corner or https://forums.xfinity.com/direct-messaging  
 
Click the "New message" (pencil and paper) icon.
 
The "To:" line prompts you to "Type the name of a person". Instead, type "Xfinity Support" there.
 
As you are typing a drop-down list appears. Select "Xfinity Support" from that list.
 
An "Xfinity Support" graphic replaces the "To:" line.
 
Type your message in the text area near the bottom of the window.
 
Press the "Enter" key on your keyboard to send it.

See https://comca.st/3KQF8q9 for an example.

[Permission from and credit given to BruceW].

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.

Was your question answered? Please mark an Accepted Answer!tick

2 days ago

XfinityJustinC

Official Employee

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1.3K Messages

Hello, @user_o4rb0s thank you for sending the direct message, I'll follow up with you there to continue with the upload speed.

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick

2 days ago

EG

Expert

 • 

110.8K Messages

2 days ago

@user_o4rb0s 


You're welcome ! I'm going to escalate your issue to the Comcast corporate employees (The Digital Care Team) who are available to these boards. They will be able to confirm the area and also confirm that the correct speed configuration file gets pushed to the modem. Good luck !

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EG

Expert

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110.8K Messages

2 days ago

Thanks for returning with the update ! Glad that it got squared away ! I marked your topic as being solved and am closing it. Please feel free to return to the community with any future issues. Be well !

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