Quick answer: Rust connection issues: port 28015 UDP, EAC active and all Rust ports open in panel.
If you landed here: Rust shows "Connection timed out", "Disconnected: EAC" or server not in list.
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Frequently asked questions (FAQ)
Which ports for Rust server?
28015 UDP (game), 28016 TCP (RCON), 28082 UDP (app/query). Open all in panel and firewall.
Rust EAC disconnected?
Easy Anti-Cheat must be active on client. Server-side: don't disable EAC in config (except modded without EAC).
Rust server unreachable after wipe?
Server needs 3–5 min after start. Check port, server.seed and worldsize set correctly.