Overview
- The public beta opened on September 17 and immediately hit very large login queues, repeated disconnects, and in‑game lag for many players.
- Blizzard developers published a technical post‑mortem saying a single regional realm and database/world‑pool CPU and memory pressure caused the main bottlenecks.
- Teams applied rapid mitigations by restarting world pools, running database maintenance, adding extra worlds, and expanding regional services while monitoring stability.
- Players outside the US reported high ping and frequent disconnects because test servers were largely US‑based, leading some paid beta buyers to use VPNs or request refunds.
- Testers who got in reported bugs, performance crashes, and balance feedback as the staged beta (level cap to 20 then 30) runs through October 21 ahead of the November 4 launch.