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Saturday, February 1st, 2025 9:50 PM

Intermittent dropped connection and buffering

Hello,

My neighbors and I are experiencing performance issues with our cable internet service. Has anyone had similar issues and managed to resolve them?

The issue is that we have about 900 Mbps download and 27 Mbps upload, but speed tests at Wi-Fi endpoints on multiple devices show 270 Mbps download and 21 Mbps upload.

Everything works well, but when we watch videos, we experience buffering. Additionally, a cURL download test on small file shows that every 5th to 7th download grinds to a halt.

We have an Arris S34, and its report identifies two potential issues:

  1. Some power level values are above +10 dBmV.
  2. Uncorrectables are 0 on all channels except for OFDM PLC, which has a large number (316).

Both of these are reported as potential causes of the issues we’re experiencing. Has anyone encountered these problems, and if so, what was the fix?

Thanks!

Official Employee

 • 

853 Messages

3 months ago

Good afternoon @user_q3fzfz. Thanks for taking the time to report your internet speed issues. If you

could please send our team a direct message with your full name and full address, we can look into what is causing these issues.

To send a "Direct Message" ("Private") message:

Click "Sign In" if necessary

• Click the "Direct Message chat" icon

• Click the "New message" (pencil and paper) icon

• Type "Xfinity Support" in the "To:" line and select "Xfinity Support" from the drop-down list which appears. The "Xfinity Support" graphic replaces the "To:" line

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

• Press Enter to send it

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