6:45 p.m. PDT

About 3 hours ago, we deployed increased capacity to address the initial peformance issues.

About 15 minutes ago, we deployed a change that spread out players a bit more, to reduce congestion and latency out in the world.

We’re continuing to monitor conditions on all realms and we’re working urgently on issues as they arise.

3:50 p.m. PDT

The Mists of Pandaria Classic launch was very popular!

We’re working quickly to resolve server capacity and stability issues for some US and EU Classic Realms. We don’t currently have an ETA, but we hope to have it resolved shortly.

MoP Classic Performance Update