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xiletommy
1st Topic

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Wednesday, May 13th, 2026 3:19 PM

60Mbps upload with CM3000 while on 2000Mbps/250Mbps Plan

Hello,

I made the internet plan change and hardware upgrade a couple of months back, and was living with the slower-than-advertised upload speeds. Now, I'm looking at a real need to achieve the advertised upload speeds. To clarify, my download speeds are fine, and I'm connected via ethernet.

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XfinityPaula

Official Employee

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2.1K Messages

2 hours ago

Hello xiletommy! Thank you for reaching out to us for help with the slow upload speeds that you are receiving. I'm sorry that you are not receiving the higher upload speeds as expected since making the account and equipment change. I know the CM3000 is compatible with our enhanced network and upload speeds, so it's strange that you are not seeing them especially with a hardwired connection. Are you using a router in addition to the modem? If so, are you able to connect directly to the CM3000, reset the modem and computer and check the speed again please? 

 

 

 

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xiletommy

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Thanks for responding so quickly, Paula. I've done as asked, and I'm still seeing the same results when running a speed test. Interestingly, I see a very brief split-second at the beginning of the test where the upload jumps and comes back down to plateau at 60-70 Mbps

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2 hours ago

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XfinityPaula

Official Employee

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2.1K Messages

 

xiletommy I appreacite you taking the added step to check the connections and speed directly to the modem. Again I'm sorry that it hasn't been working all this time. Let's dig into it more and figure out what is keeping your uploaded speeds below what we should have. I know that upload has become more important in the recent years, so I would love to help out and get this corrected for us. 
Can you please send us a direct message with your name and service address? 
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 "New message" (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

 

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