Internet keeps going out?

[V. Perkins]

Bzzzt! Wrong! The correct answer is, "... you're not interesting enough for someone to DDoS."

So, stop the random chats, make sure your firewall is up/on, and come up with a new theory because a DDoS attack would cause ALL of your devices to not work since they'd be attacking your router (the true holder of your Public IP) -- not your PC.

Oh, and the reason your Public IP didn't change is that you didn't turn off your router long enough. There's a time value called "Lease Time." Your router needs to be off longer than that value *plus* the time it takes to give someone else your old IP. Otherwise, when you turn on your router their side says, "Oh, there you are!" and hands you your old IP address again. Your router does the same thing for devices in your house.