Restarting your router is one of the easiest ways to resolve minor internet speed issues. Often, these devices just need a fresh reboot to clear out temporary glitches and restore your connection to full speed. How to do it: Unplug your router. As the backbone of modern communication systems, fiber optics facilitate seamless interactions across large distances with unprecedented speed and reliability. So, when your fiber internet doesn't deliver, it can be a huge letdown. You can fix most of these issues yourself; some only take a few minutes—we'll start with eight of the most common. This is frustrating, especially with slow gaming or during streaming.