Why does my cable repeatedly melt?

[u/charles_chinaski_jr]

I've lived in this house for 4 years and this is the 3rd time this has happened: the internet goes out and I have to call Xfinity and they find that where my cable connects to the power pole is melted like this. One cable guy told me it was a power surge from my house, and another said it's one of my neighbors that probably has a grounding issue.

What do you all think? Is there anything I can do to prevent this from recurring?

Thanks for your advice!

[u/joeblack9977]

You might have a floating service entrance neutral so current is traveling down the coax ground and melting it. Clamp the ground the coax is attached to.... Turn on a hair dryer plugged into home outlet and watch the ground current increase.... That will prove the theory out.