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Connection & updates

Hytale uses UDP, not TCP: what that changes

Reviewed October 26, 2026 1 min read

Hytale servers talk to players over the QUIC protocol, which runs on UDP. The default port is 5520, and TCP forwarding isn't required.

Minecraft vs Hytale networking

Minecraft JavaHytale
ProtocolTCPQUIC over UDP
Default port255655520
TCP needed?YesNo

What it means in practice

  • Any firewall rule or port forward has to allow UDP, not TCP.
  • Tools that test a port with TCP will say it's «closed» even when the Hytale server works fine.
  • On our servers the port is already open on the node; you don't have to configure anything.
Worth knowing

The official manual mentions that symmetric NAT setups can cause problems for players. That concerns players hosting at home, not a server in a data centre.

About this guide: An original guide from the EnduranceNodes team, written for the servers we host. If a step no longer matches what you see, tell us and we will update it.