New Poster
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6 Messages
my Xfinity cable boxes get interference from my Xfinity cable modem
I discovered soon after getting Xfinity service that I see intermittent blocky interference on cable TV channels when my cable modem is connected. Unplugging the cable modem fixes the problem, but it's very annoying to have to cut off my internet service in order to enjoy my cable TV service. I've tried a number of things:
- I removed all connections from the splitter except for one set top box and the cable modem. Didn't help.
- I checked the Comcast Labs signal quality feature on the set top box. The reported signal strength is green / good.
- I installed a higher quality splitter with better isolation levels. The interference continued.
- I tried installing my own (Xfinity-approved) cable modem. The interference continued.
The STBs are an Xfinity XG1-P (Pace PX013ANM) and an Xfinity XG2v2-P (Pace PX022ANM). Both of them show the interference. The cable modems I've tried are an Xfinity XB6-T and a Hitron CODA56.
I saw a reference online to a "high split filter" that can be installed ahead of the STB to prevent interference problems like mine, but I have no idea how I would get such a filter. Anybody have a suggestion?
XfinityMarshante
Official Employee
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546 Messages
9 days ago
Hello @donnholladayut, thank you for taking the time to leave a post. Sorry to hear that you are having interference with your cable. Thank you for providing the details of the troubleshooting steps you have already taken. If you could send our team a direct message with your full name, the name listed on the account (if different), and the service address associated with your account, I'd be more than happy to look into this for you.
To send a Direct Message, please click on the “Direct Message” icon in the top-right corner of the screen, next to the bell icon, click the "New message" (pencil and paper) icon, then type or select "Xfinity Support". Type your message in the text area near the bottom of the window and press Enter to send your message and initiate a live session.
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EG
Expert
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113.7K Messages
8 days ago
@donnholladayut @XfinityMarshante
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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