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user_t1gsiu
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10/03/2026 2:06 PM

Intermittent upstream packet loss / rubberbanding (LAN clean), loss starts after Xfinity gateway

I’ve been dealing with intermittent packet loss that causes noticeable rubberbanding in online games, disruptions during video streaming, and slower upload speeds.


I’ve tested this with continuous pings:

ping 10.0.0.1 -t
ping 1.1.1.1 -t

My local gateway at 10.0.0.1 stays stable with no timeouts, but 1.1.1.1 will occasionally show Request timed out at the exact same time I experience rubberbanding.

Xfinity has already:

  • Replaced the modem/gateway
  • Replaced the indoor coax
  • Checked the orange drop line and said it looked fine
  • Submitted a maintenance ticket

An MTR also shows packet loss beginning at the first Comcast-side hop (10.54.38.170) and continuing to the final destination.

The issue is still happening immediately after the equipment replacement, and coax cable replacement.

Does this sound like an outside plant, tap, node, CMTS, upstream/return-path, or ingress/noise issue? Is there anything specific I should ask the maintenance team to check?

I’m mainly trying to figure out what could cause intermittent packet loss after the gateway while the LAN connection remains completely stable.

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2 hours ago

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XfinityBillie

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2 hours ago

 

user_t1gsiu  Thank you for reaching out to us today over our Xfinity Community Forums! Please remember that sending unsolicited direct messages to an Official Employee of the Xfinity Help & Support Forums is a violation of Forum Guidelines. In the future we ask that you please find the most appropriate public board for your question type and post it there. If needed, we may invite you to send us a Direct Message.

I definitely appreciate all of the detail you have shared. Since we've had a few technicians out and there may have been a maintenance ticket submitted, let's get a closer look at the account together. Please send us a DM to Xfinity Support with your full name and address to get started.

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


 

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