Visitor
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2 Messages
Cable Modem Uncorrectable codewords QAM Channel 471 MHz
My modem’s downstream power, SNR, upstream power, and OFDM MER are within normal ranges. However, after a reboot, downstream QAM channel 471 MHz has again accumulated 1,633 uncorrectable codewords, while the other 31 QAM channels are essentially clean. The same channel had 1,587 uncorrectables before the reboot. My event log also shows intermittent T3 timeouts and Lost MDD Timeout events. Please check for intermittent ingress/noise or a plant/drop issue affecting the 471 MHz region.
XfinityJeff
Official Employee
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1.3K Messages
7 hours ago
Good morning @user_zyz2it, and thank you for reaching out to us on the Xfinity forums with your issue, I hope this message finds you well. I am sorry to hear about the issues you are having with the connection, but you have come to the right place for assistance with this issue. Could you please send our team a direct message with your full name and full 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 "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
You can see how to send us a direct message here, https://forums.xfinity.com/conversations/guidelines/how-to-direct-messaging-within-the-forum/697ba1e570934d009185c514
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EG
Expert
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122.2K Messages
3 hours ago
@user_zyz2it @XfinityJeff
Please circle back here and post any possible solutions for the issue here in these open public forums so that all readers here may benefit from the exchange / info. This is in keeping with the spirit for which these public help forums were originally intended. Thank you.
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