I have basic cat3 cabling for phone and whoever installed the cable jacks didn't even do it right. I was getting bizarre connection dropping, so I had a Cox tech come down and he took a look at the wall. It wasn't installed right at all, they didn't even use mounting screws, so the coax cable was literally holding the plate in place and this was causing the connection to be severely degraded. Internet has been working great ever since.
Just another story of bizarre home wiring, congrats to the OP