Visitor

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5 Messages

Tuesday, July 7th, 2026 4:44 AM

Hitron CODA56-High Uncorrectable

Hello, We had a bad storm a couple weeks ago, I have had a tech come out and replace our cable from the street and check the signal from our house to out into the street. The power level was really high so he added a two way splitter to reduce the power level. That seems fine now but I still keep getting a high level of uncorrectables, the modem will reset itself every couple of hours. There is only one line coming into the house and straight into the modem, with the ground connector that's only maybe 2 feet from outside of the house to in the house. I have replaced all the cables that can be replaced but I'm still having this issues. I did get  text messages saying our area was out of service a couple of times and it was supposed to be cleared up today, but I still keep having the same issues.

I reset the modem via power cycle and reset button, it will be fine for a hour or two then all the sudden a high volume of uncorrectables comes back. I also tried connecting my laptop directly into the modem to test and make sure there wasn't an issue with my wireless ASUS ZENwifi AX6600 router with 1 node or unmanaged ethernet switch and still had the same result. I don't know if there is another check that can be done before I need to start replacing equipment. 

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Official Employee

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4.4K Messages

5 days ago

@stevenjkjr I am sorry to hear of the issues you have had following a storm. Have you replaced your equipment as the storm may have caused damage.

Visitor

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5 Messages

@XfinityDena​ replaced with a Arris S33, but this also seems to be a common problem with my network. Even before the storm, there would be a high amount of uncorrectables. Which is why i switched my modem last time. It works for a week then all the sudden it starts happening again. I’ve had techs come out and check signals and everything on their end is fine. Even checking from in my house to outside going out to the street connection. 

Official Employee

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3.3K Messages

 

stevenjkjr Thank you for those details. Have you, by chance, checked the RF signals on your end when the issues happen? 
You can use our internet troubleshooting tips page here to see how to view that and the ranges you should be seeing. 

 

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Visitor

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5 Messages

Yes, that is the pictures above when it starts getting dicey signal. Looks like from your site the down stream signal noise  is a little high? according to the link you provided its says 35dB, my signals are 38.6dB to 40.4dB. 

I ran the test with cmd I dont feel comfortable posting the results, since it shows my public and local IPs. where can I send this to?

Official Employee

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2.7K Messages

Thank you so much for these test results on these photos, and for letting us know you have additional information to share. 

 

Please send a direct message by clicking the chat icon in the upper right corner of the page, clicking on the pen and paper icon, and then entering “Xfinity Support” in the “To” section. Please include your name and address, and we can get started anytime. You will be able to upload photos via our 1-1 chat, and we can check your home signal levels in our systems as well. 

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Expert

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119.2K Messages

@stevenjkjr​ wrote;

 Looks like from your site the down stream signal noise  is a little high? according to the link you provided its says 35dB, my signals are 38.6dB to 40.4dB. 

As an FYI, the SNR can never be too high. The higher it is, the better!

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