My ISP is cable. Called and said they needed in my house to find the source of the signal that was affecting everyone else in my neighborhood. Literally nothing had changed and my house has been connected since 2010.
The tech arrived and I had them start outside. He replaced every connection/coupling and kept testing. After all of them were replaced, his testing machine showed a perfect signal. Noise eliminated. I was not charged for this service.
I found this baffling. My neighbor’s coax connections affect me?
Has this happen as well, of the wire acting as an antenna is bad enough, the ISP may even get a letter from the FCC from my understanding. In addition to replacing every connector, they disconnected all unused coax connections or made sure unconnected points had grounded caps on them.