Systematic methodology for diagnosing and fixing PlayFab GSDK and Netcode for GameObjects issues in production.
Export PlayFab matchmaking queue rules and validate ticket attribute mappings. Most failures stem from mismatched skill ranges or missing region tags.
// Common culprit: missing latency data
MatchmakingTicket ticket = new MatchmakingTicket {
Attributes = new Dictionary<string, object> {
{ "skill", playerMMR },
{ "region", "us-west" } // Must match queue rule
}
};
Pull PlayFab API logs and correlate ticket creation timestamps with match allocation events. Timeouts usually indicate queue depth issues or server pool exhaustion.
Spin up 500 bot clients using Unity's Netcode test framework. Stress test matchmaking under realistic player distribution across skill tiers and regions.
Monitor NetworkManager.OnClientDisconnectCallback. Distinguish between intentional quit and network hiccup using timeout threshold (default 5s is too short for mobile).
Serialize critical NetworkVariables to Redis with 5-minute TTL. Include player position, inventory, match timer, and turn state for card games.
Client reconnects with same PlayFab session token. Server validates token, retrieves state from Redis, and sends full snapshot via RPC before resuming tick updates.
Client applies server snapshot, discards local prediction buffer, and re-syncs NetworkTransform positions. Critical for preventing desync in fast-paced games.
Python scripts to bulk-query matchmaking tickets, server logs, and player session history. Faster than web dashboard for production incidents.
Unity package that visualizes NetworkVariable sync frequency, RPC call counts, and bandwidth per NetworkObject. Essential for optimization.
Web interface for browsing cached game state, session tokens, and reconnection snapshots. Built with ASP.NET Core + StackExchange.Redis.
Headless Unity client that spawns 100+ bot players, simulates realistic input patterns, and reports metrics to InfluxDB for time-series analysis.
This methodology has fixed matchmaking and reconnection across 12 live games. Your card game is next.
Back to Solutions