I know only enough to be dangerous. I have high speed cable Internet. Lately, once in a while, (2 to 3 time a week), the Internet won't come up. I have to unplug my cable modem and my wireless router, (for Melanie's laptop in the kitchen), let it sit for a minute or so, then plug it back in, and in another minute or so everything works fine. It's like it has to "reset" or something. My cable modem is mine, not the cable companies. It's Motorola SB-5100. I've had it for about 5 to 6 years now. The wireless router is only about 2 years old.
The thing is I don't even know if it's either one, and or both that is causing the problem. I'm guessing that based on the fact they are both plugged in 24/7. I tried just unplugging the router, that didn't work. Same deal with just the modem. If I do both, then it works fine. I'm running a HP Pavilion with an AMD and Melanie has a Toshiba laptop with Intel. After the holidays we're going to get 2 new desktops, and I'm going to take the laptop and use it strictly for guns, handloading, and firearms related stuff.
If, by then, I can't get this resolved, I'll probably invest in a new modem and router as well. They're not that expensive. Bill T.