UPDATE: The patch maintenance period is complete, game servers are back online!
Previous information:
The March 15th patch is now available for pre-load through both the standalone launcher and Steam, but the MWO game servers are still in the processing of undergoing an extended maintenance period.
Please note that attempting to log-in prior to the activation of the game servers may currently return a generic network error, instead of the standard Servers Undergoing Maintenance error.
We will keep this post updated as we approach the end of this maintenance period to announce when services will be brought back online.
Thank you for your patience!