Visitor

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1 Message

Tuesday, August 26th, 2025

Critical Modem Errors

Hello

Last week had a tech come out that wouldnt even look at the modem errors he insisted it was outside line going from the pole to the house. He replaced it and left. Welp we still have the errors below. We still have signal loss, slow speed, and modem resets. The house has a single line run to the modem. So the line comes from the pole to the house. Then runs to the outlet where the modem is plugged in. No splitters, new outside cable, we have tested 3 modems (Xfinity, Motorola, and Netgear) All having the same issues. Changed the inside coax cable, the one goes from wall outlet to modem and that didnt work. Any help anyone could lend us would be greatly appreciated. 

Same few errors over and over
SYNC Timing Synchrinuzation failure

No Ranging Response received T3 timeout 

[Image Removed: "Personal Information - MAC Address"]

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Official Employee

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2K Messages

1 day ago

Thank you for reaching out here @jokerz4fun. I would be happy to take a look at any connection issues from here for you. Can you send me a direct message with the full name and complete address for your service? 

To send a direct message [private message]:

   Click the "Direct Message" icon or  https://forums.xfinity.com/direct-messaging

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

   The "To:" line prompts you to "Type the name of a person". Instead, type "Xfinity Support" there.

   - As you are typing a drop-down list appears. Select "Xfinity Support" from that list.

   - An "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

Expert

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112.9K Messages

1 day ago

@jokerz4fun @XfinityJohnG 

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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