Maybe it hits when you're sitting down to enjoy your nightly Netflix binge, or just trying to catch up on your favorite content creators. No matter when it happens, though, slow internet speeds can be really annoying. And while there can certainly be other reasons your internet is running slowly, the chances are very high that slow speeds at night are caused by one primary issue: network congestion. Think of it like your internet is coming through a pipe that feeds to everyone else around you. However, there's also a second potential issue you should be aware of: internet throttling.