Visitor

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2 Messages

11/11/2026 3:17 PM

My new Hitron CODA56 is online and operational, but Xfinity's account system incorrectly reports it as offline. I'm getting approximately 1

I recently upgraded my customer-owned modem from an ARRIS SB8200 to a Hitron CODA56 to take advantage of Xfinity's enhanced upload speeds.

My account was confirmed by an Xfinity store representative to have a 250 Mbps upload speed tier, but after activating the CODA56, I'm still getting approximately 41 Mbps upload, essentially identical to my previous modem.

Current speed test results:

  • Download: 1,419.56 Mbps

  • Upload: 41.43 Mbps

I've confirmed the following through the CODA56's diagnostics:

  • DOCSIS 3.1 OFDMA upstream: OPERATE

  • OFDMA upstream bandmargin: 0;">Four ATDMA upstream channels: 54.5 dBmV

  • Both OFDM downstream channels: Locked

  • Ethernet connection: 2.5 GbE

Additionally, the Xfinity app incorrectly reports my modem as offline, despite the connection functioning normally. This prevents me from getting past the automated troubleshooting assistant to reach support.

I've found other reports on these forums of CODA56 owners experiencing the same ~40 Mbps upload limitation, which Xfinity resolved by correcting an outdated bootfile or provisioning profile.

Could an Xfinity representative please:

  1. Verify that my CODA56 is correctly registered as the active modem on my account.

  2. Confirm that the assigned bootfile/configuration file matches my current speed tier.

  3. Verify that the upstream service-flow rate is provisioned for my enhanced upload speed.

  4. Check whether a legacy 35 Mbps upload profile is still assigned.

  5. Reprovision the modem if necessary.

I'd appreciate assistance from the Digital Care Team in checking the account and provisioning configuration.

Thank you!

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Official Employee

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2.9K Messages

53 minutes ago

@user_45qf03 I'm sorry to hear of your slow speeds after updating your modem. I have a few questions to ask for troubleshooting so we can resolve your speed concerns. 

Does the app show the correct modem?

Do you have any addition device connected such as a separate router, Wi-Fi pods, amplifiers, Wi-Fi extenders etc.?

Is the slow speeds on more than one device or just one?

Is this device connected via WIFI or Ethernet that you ran the test on?

Have you performed any troubleshooting steps?

Have you logged out and back into the Xfinity App?

Have you restarted your modem and any additional connected devices?

Visitor

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2 Messages

One additional finding: My Xfinity account now displays two cable modems. One reports "Status Unavailable" and the other reports "Offline."

I recently replaced my ARRIS SB8200 with a Hitron CODA56, so I suspect both devices may still be associated with my account.

Could you please verify which modem is currently registered as active, confirm that the old SB8200 is no longer assigned as the active device, and ensure the CODA56 has the correct enhanced-speed provisioning profile?

The CODA56 is functioning normally for downstream traffic, but upload remains capped at approximately 41 Mbps.

Official Employee

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3.9K Messages

Good morning, @user_45qf03 ! Thank you for providing those additional details. We can take a closer look at the modem currently associated with the account and the provisioning for your CODA56, especially given the upload speed you’re seeing. Please send us a DM with your full name and service address so we can review this with you.

 

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