Deep Packet Inspection (DPI) Explained
ISPs use DPI to analyze the data packets traveling through their network. They look for specific signatures—headers that identify the data as "Video Streaming" via Xtream Codes or M3U protocols.
How Throttling Works
Once the ISP identifies you are streaming high-bandwidth video (especially during live sports events), their automated scripts limit the bandwidth allocated to that specific connection type. You might have 100Mbps download speed, but your video stream is capped at 2Mbps, causing buffering.
The Solution: Encryption
Using a VPN wraps your data in an encrypted tunnel (usually AES-256). The ISP can still see you are using data, but they cannot see what it is. Because they can't identify it as video, their throttling scripts don't activate.
