Visitor

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3 Messages

09/02/2026 4:26 AM

Intermittent disconnects.

I've restarted my modem multiple times, pinged my local gateway to confirm that it wasn't my device, and I still cannot resolve these 5-15 second disconnects that keeps randomly happening. It's long enough to drop calls and interrupt downloads.

The modem is reporting millions of uncorrectables, low SNR, 1/5 are showing 26-29 with some going 41+dB.

I don't have splitters in my home.

Anything else I can do? Thanks.

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Visitor

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8 Messages

21 days ago

Having the exact same problems.

Official Employee

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3K Messages

20 days ago

Hey @xxw, Thank you for visiting our official Xfinity Forums Community support page. We would be more than happy to assist in troubleshooting the Xfinity Internet connection. With the intermittent connectivity you are describing, could you please check the coax cable and ensure there are no hard bends, kinks, bite marks, or cuts that could interfere with the signal communication between the modem and Xfinity network? Hard bends in the coax can cause the issues you are describing.

Visitor

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3 Messages

@XfinityDemitrius​ Hi, I loosened the cables and found no visible damage or harsh bends (at least the section in my house, I cannot get close enough to see the part outside).

Visitor

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3 Messages

16 days ago

I

loosened the cables and found no visible damage or harsh bends (at least the section in my house, I cannot get close enough to see the part outside).

Official Employee

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4.3K Messages

Thanks for checking on the wiring and for the other troubleshooting steps that you tried. I want to check further on the SNR. We may need to get a visit set up to further address that. Please send us a direct message with your full name and complete service address to “Xfinity Support”. To do so, click on the direct messaging icon located at the top right of this forums page.

 

Here's the detailed steps to direct message us:
1.  Click "Sign In" if necessary.
2.  Click the "Direct Messaging" icon.
3.  Click the "Start new conversation" (pencil and paper) icon. 
4.  In the "To:" line, type "Xfinity Support".
5.  As you type, a drop-down list will appear. Select "Xfinity Support" from that list.
6.  An "Xfinity Support" graphic will replace the "To:" line.
7.  Type your message in the text area near the bottom of the window.
8.  Press Enter to send it.

 

You can see how to send us a direct message here, https://forums.xfinity.com/conversations/guidelines/how-to-direct-messaging-within-the-forum/697ba1….

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Expert

 • 

121.4K Messages

13 days ago

@xxw 

The upstream power levels are borked. Get a tech out to investigate. Good luck !

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