"As a reminder, our scheduled daily server maintenance is between 5am and 8am PDT (8am to 11am EDT). We bring the servers down during this time to roll out updates. The servers will usually only be down for about 20-30 minutes but some updates may take longer.
In parallel to the server updates, we are also working on a new client patch which resolves some client side stability issues. These issues include getting booted to the XMB, large number of players getting disconnected from a specific game and other issues. We've been working on and testing this since the game launched and we should have a final version ready for release in the next week or so. It is hard to provide an exact date or timeframe as we need to make sure the patch is thoroughly tested and does not introduce any new issues."