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Thu, Sep 3, 2020 10:00 PM

Antenna interfering with Xfinity cable services?

Hi all,


For last couple of months my Internet connection is slow off and on. I never had any problems before. About 2 months ago my landlord started promoting common.net in our building and this company has installed an antenna on our roof. I want to know if their antenna is causing interference with cable services. Any information and feedback would be greatly appreciated.






86.5K Messages

8 m ago

Anything is possible but not likely. Cable is a closed system, and that is over the air 5G.


What do the modem's signal stats look like ? Try getting them here or here

Please post the *Downstream Power Level*, the *Upstream Power Level*, and the *SNR* (Signal to Noise Ratio) numbers.

What is the exact make and model number of the modem ?

Is this a WiFi connection ?

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