13 Messages

Monday, October 20th, 2025

Replacement drop line coax cable quality,,wrong type of cable used

The old drop line a direct buried RG6 dual shield coax cable was replaced after 10+ years with a new cable inside an off orange colored conduit with the PPC label on it. The coax inside has the labeling that according to PPC product listing is for inside home use. I know a third party contractor did the install, but why would he not use the correct type of coax cable ( that is the outdoor flooded version) ?, the service here is working, however there is times of the day when there are high error readings on the modems event log. The conduit nearest the ground block is quite loose, I was thinking it should be a continuous piece from pedestal to ground block, a small portion does need to go under a concrete walkway block, then just buried in the ground to the pedestal inside. I,m not griping about the service, just the way it was done. The installer left several feet of new conduit with PPC flooded direct bury cable inside,,,,wondering why this was in the trash can ?.

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Official Employee

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185 Messages

6 days ago

 

user_xxlt6b, hi there. Thanks for reaching out regarding your concerns. I would not be able to tell you that specifically as t why extras was thrown into the trash can. Those vendors who complete these jobs are trusted partners, and are knowledgeable in our service request orders. When was all of this done? 

 

13 Messages

Hello, the new drop was done June 6 . 

Official Employee

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2K Messages

@user_xxlt6b That's a long time to have issues.  What timeframes in the day do you usually see the high errors? 

How long do they last? Can you tell us more about the service issues that happens. Is the connection slow or intermittent? Just to confirm are you requesting another tech to come out?

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13 Messages

Ok, as it is the errors show up several hours after the modem is operational, they encompass the first quarter or so of the 32 downstream channels and the last3-4 of the bottom of the batch. To give a better mental picture, if you were looking at a typical DOCSIS 3.1 cable modem , anywhere from about 425Ghz to 585 Ghz and the last few channels on the bottom. The OFDM channel would also have a large amount of errors. The funny thing is the internet still works,,web pages load and no major problems occur, if the modem is restarted,,depending on the time of day, no other errors happen. It has me thinking that perhaps somewhere in this plant , a device is being used and its use is possibly causing the errors. I want to make it clear that my services don’t seem to be affected to the point of making it unusable. I checked today after the modem has been on for more than 10 hours and now there  are zero, I mean zero errors of any kind. The 32 downstream channels are showing 0/0. The signal levels both up and down are not only well within the limits just above zero, but are also within 3dB of each other,,,,just short of being perfect ( I have had it perfect for a very long time until recently). I don’t need a tech visit here, but a polling of the CMTS may give insight. I will continue to monitor my modem, and if it becomes a larger issue, I will happily notify .

13 Messages

6 days ago

One last comment on this ,,with reference to the third party contractor that installed the drop,,at this point in time as long as no other issues arise, I shall plug along, not too concerned about cable modem events within reason,,,,enough diatribe from me,,,have a good night.

Official Employee

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2.7K Messages

 

user_xxlt6b  That does sound like a network issue, and I am glad to hear you haven't noticed any issues since. Please do let us know if the issue pops back up so we can help ensure it gets addressed for you. 

 

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick

13 Messages

15 hours ago

Greetings all,,, after some extensive troubleshooting,,I have come upon a possible source of my cable modems high uncorrectables , my neighbor next door also has Xfinity service. I remember during the Covid situation that he had Xfinity service installed, there were 2 men with shovels making a shallow trench from the pedestal to his ground block. The coax cable they used was orange in color, my guess is it may have been direct bury RG6, no conduit, just the cable and the dirt to follow. I know when I had the tech come out in April to evaluate the situation, he removed the pedestal cover, inside were just 2 coax cable connections….my neighbors (in orange) and my old drop ( black…dual shield ,,direct bury ). Since about the 22nd of this month until this afternoon, my cable modem was at zero issues. My neighbor came home, started leaf blowing and now the modem once again has errors. Now I do realize this could very well not be the problem,,I thought I would share the info,,,,and by the way,,I downloaded the modem’s diagnostic info since the 22 nd.

Note: This comment was created from a merged conversation originally titled Cable modem error issues
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