Buffering happens when your internet connection can't keep up with the video you're trying to watch. Think of it like trying to unload a moving truck with one person instead of a crew — the work just can't get done fast enough. There are a few common causes. For example, your internet speed may not be fast enough for what you're doing, there could be too many devices may be sharing the connection at once, or your Wi-Fi signal may be weak where you're sitting. If buffering is a regular problem, check how many devices are connected and consider moving up to a faster plan.