[Elecraft] HELP! XFINITY SHUT OFF INTERNET DUE TO HAM ANTENNAS

[Dana]

Questions:

1. is this coax?
2. do you use a cable modem?

I found on 160 m my cable modem kept resetting…
discovered the upstream side uses HF and above 30 Mhz!!!
Fix?  
Grounded the cable to my system ground (the existing cable ground was a joke) …put some ferrites on the cable near the modem.
as a precaution put the modem in a copper screened box for testing…
Reset cured -  … with proper grounding and ferrites….

You are Federally regulated, and so is the Cable company… so any issues are likely their plant or
the gear attached to their plant…..(ie cable modems with improper bypassing or disconnecte drop lines etc...

The towers stay, send that reigstered letter and CC ARRL….

73 Dana Ve3DS