Only wifi? Another way to reset?

As beams appear in list of available networks, I have had one of them attacked by a hacker(s). It’s been completely disabled. This was deliberate. many of my devices have been infiltrated by this stuff I would scrape off the bottom of my shoes. They’re able to access the devices at a deeper level and wreek havoc. My cable/internet provider’s equipment has been disabled multiple times. Does anyone have any ideas? Is there another way of setting up the lights other than wifi?
I need help with this