Xfinity (Comcast) Gigabit, 1000 Mbps upload speed supposed to be up to 115mbps, actual is 23 mbps, down from 40 mbps

Thanks so much man!

I was looking for a chart that showed the ALLOWED UPLOAD speeds! Awesome! I always buy my own equipment so this helps SO much.

Again, thank you!!

@BruceW​ 

That, did not solve the problem.

Same issue. Same speed.

Comically tech support, which is non-existent to a live person on a call, says my issue is my modem, which I had to respectfully disagree with.

[Edited: "Language"] I hate this no real people thing we have lopped ourselves into.

Hi there, @user_gwo62b! As @BruceW mentioned, the Arris S33 modem is not compatible with our higher upload speeds at this time. The service you mentioned you have, Gigabit, would be1Gbps/20Mbps and that would track as correct to what you've described. Have you changed anything since you took a look at the information provided?

@XfinityFrank​ 

Hi Frank,

The issue persists after a modem upgrade to a Hitron CODA56.

Which according to the XFinity list allows DL to 2.5 gps and UL to 437 mbps

My contract states:

I hope you are feeling better today and appreciate your update, user_gwo62b. I would like to take a look at your account from here. We check that your address shows updated to our Next Generation speeds, that your modem is listed properly in our systems, that your package has the correct coding, and your bootfile among other things. We will get to the bottom of this!

Please send us a direct message with your full name and complete service address to “Xfinity Support”. To do so, click on the direct messaging icon located at the top right of this forums page.

Here's 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

With the technician checking at your home and the website reflecting the Next Generation speeds, this sounds like something on our end, in our systems, user_gwo62b.  I have a code I have added in our billing system before for other customers and have been successful at getting the proper speed to come through. It fixes it most times. That force provisions the modem to try and get the upload speed to update from the 20 Mbps to 150 Mbps.

When we provision the modem, I always recommend unplugging a separate router from the power (if you have one). The router will sometimes intercept the signal so it will look as though it processed on our end but does not. The router power can be restored once the modem resets and is back online.

If that does not work and my other checks do not fix this, we are able to work with our Network Engineering team, NETS, to resolve the issue.

Feel free to send us a direct message at your convenience with your full name and complete service address to “Xfinity Support”. To do so, click on the direct messaging icon located at the top right of this forums page.

Here's 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

@user_teeokm​ If you can get fiber, 100% get fiber. It's a better service.

If you are stuck with the copper connection like I am , get on their support app, have a tech come out, check your connections and if it is not a physical issue it may be, like mine was, a throttling issue on their end.

@user_gwo62b​ I had the Comcast Tech come to my home and test the upload speed at the POLE! It was pathetic! Wasted all kinds of money on the [Edited: "Language"] from the agents! Finally dumping them for Fiber reduced my price by $70 :)  Still have overpriced cable TV with them! When they stop supporting Cable Cards, I am dropping them!