How does the Hysteria 2 protocol save connections during high packet loss and unstable networks?

IT USES A MODIFIED UDP PROTOCOL WITH ITS OWN BUILT-IN CONGESTION CONTROL.

Standard TCP connections drop speed sharply even with a few percent packet loss. The Hysteria 2 protocol aggressively pushes data through unstable communication channels, ignoring standard acknowledgment delays.

Overcoming the Packet Queue Blocking Effect

In classical TCP-based protocols, losing a single network block freezes the transmission of the entire queue until acknowledgment is re-received. Hysteria 2 is built on the modified QUIC transport protocol: independent data streams run in parallel, so losing individual fragments does not cause web pages or video streams to freeze.

Client Configuration for Maximum Stability

Switch your profile to Hysteria 2 when using mobile internet on the move.
Specify the exact bandwidth limits of your ISP in the bandwidth throttling settings.
Enable dynamic port hopping to protect against selective filtering of UDP traffic.
Monitor network latency using the client's built-in monitoring tool.