Hi Hyper12,

Sorry to hear you're having a hard time with your internet connection - that sounds frustrating.

It sounds like you've already tried quite a few things to figure out where the issue is. If you have voltage on your cable line that can cause all kinds of havoc with your connection. I did a quick google search and it sounds like you can either trace where your cable comes from and check the voltage or you can call an electrician. Here is a forum thread that goes into this issue in more depth: https://www.electriciantalk.com/f2/voltage-house-coax-cable-29936/.

It sounds like you're pretty handy if you have a voltmeter and can take readings with it. If it was me I'd find where the coax comes into my house and disconnect it and check the voltage. If it has voltage then call an electrician or the cable company because there shouldn't be voltage on your coax as far as I understand.

Good luck and let us know how it goes!

Thanks,

-Poe