rmrpbutt's profile

Visitor

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1 Message

07/01/2026 5:38 PM

Upload Speeds

My account is supposed to have 2.5Gbps download and 250Mbps upload speeds, which I can see on my account page.
Download is at an acceptable speed level. However, Speedtests shows my upload speeds are capped at 15-16 kbps using the Comcast supplied XB8 gateway. I have used speedtest.net, fast.com, connect either to Boston Comcast, NJ Comcast, etc. The upload speeds are consistently very low.

Two Tier 1 agents have failed to understand the problem. The first tried to transfer me to level 2 and instead disconnected me. The second claimed he could handle provisioning even though I asked 2 times for escalation. He then told me it was a problem with the XB8's wifi blaster, which is utter nonsense and proves he didn't understand what upload speeds and what I meant by provisioning. He tried to set up an appointment and said I would get a text with available times. 

Surely there is a better way than waiting for a technician to tell me there is nothing wrong with my device, or for him to swap it out for a new one which doesn't address the issue I called about.

This is not an equipment issue. It is provisioning. I just want the cap to not be so artificially low. I don't expect full 250Mbps, but something a lot closer than 6% of the max.

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Official Employee

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3.1K Messages

3 months ago

Hello, and thank you for taking the time to share what you've been experiencing. I can certainly understand your concern, especially after reaching out multiple times and feeling like your upload speed concerns weren't fully understood.

If your account is showing eligibility for up to 250 Mbps upload speeds and you're consistently seeing uploads around 15–16 Mbps, we'd like the opportunity to take a closer look. There are several factors that can affect upload performance, and we'd be happy to review the modem's provisioning, signal levels, and account configuration to help identify what's going on.

Please send us a Direct Message with your full name and service address, and we'll get started. We appreciate the detailed information you've already provided and will do our best to help get this resolved.

 

Here are the detailed steps to direct message us:

• Click "Sign In" if necessary

• Click the "Direct Message” icon (upper right corner of this page)

• Click the "Start new conversation" (pencil and paper) icon

• Type "Xfinity Support" in the "to" line and select "Xfinity Support" from the drop-down list

• Type your message in the text area near the bottom of the window

• Press Enter to send your message

Visitor

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4 Messages

8 hours ago

“500 Mbps plan, 100 Mbps promised upload. New Xfinity gateway. Gateway receives ~589 Mbps download. Phone receives ~150 Mbps download but only ~10 Mbps upload. Same phone gets ~150 Mbps upload on cellular. Please check the modem’s upstream provisioning/bootfile and whether it is locked onto the mid-split OFDMA upstream channel.”

That's my problem in a nutshell.

Visitor

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4 Messages

I still need assistance from an Xfinity employee. My plan includes up to 100 Mbps upload, but I am consistently getting only about 10 Mbps upload even when testing right next to the new Xfinity gateway. Please have an Xfinity representative review the provisioning and upstream signal levels on my account.

@Jasonh1974​ 

(edited)

Official Employee

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1.8K Messages

Good afternoon Jasonh1974. I will be happy to assist you further with your speed concerns. Just to ensure I fully understand what steps have been taken so far; what troubleshooting steps have you already taken?

 

(edited)

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 as Best Answer.tick

Visitor

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4 Messages

1. Used Xfinity App to verify that the download is 580mps. Xfinity app does not check upload speed.

2. Use 3rd party Wi-Fi speed test and have consistent data that show download speed of 150mps and upload of 10mps. 

3. Verified multiple times that I

My plan is 500mps download with 100mps upload.

4. Verify that my condo is already on an upgraded node. 

5. My cellular 5G data plan on my phone test 350mps download and 150mps upload. 

6. This problem has lasted 3 years.

7. You just sent me a new gateway.

Visitor

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4 Messages

8. I have installed the new gateway successfully.

9. I have researched using ChatGPT. And have done everything that can be tried.

10. I am literally standing right next to the gateway. So it is not a signal weakness problem.

Official Employee

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2.6K Messages

 

Jasonh1974  Please send our team a direct message with your full name and address. To do so, click on the chat icon located at the top right of this forum's page.
 
 Here are the detailed steps to direct message us:
 
 • Click "Sign In" if necessary
 • Click the "Direct Message” icon (upper right corner of this page)
 • Click the "Start new conversation" (pencil and paper) icon
 • Type "Xfinity Support" in the "to" line and select "Xfinity Support" from the drop-down list
 • Type your message in the text area near the bottom of the window
 • Press Enter to send your message
 
You can see how to send us a direct message here, https://forums.xfinity.com/conversations/guidelines/how-to-direct-messaging-within-the-forum/697ba1….

 

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 as Best Answer.tick
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