*Update - This has been moved to happen 3AM EST on the 20th.
The network will be undergoing maintenance tonight at 3 AM EST. We expect the downtime to last approximately 4 hours, which means that hopefully players can be online by early morning. This maintenance is intended to implement the new networking core system we discussed in our most recent announcement, and it will be going into live beta on the Survival server only. Once we have deemed all the functions to be bug free we will begin rolling it out to other servers.
Again please note that tomorrow at 3 AM EST we expect to have approximately four hours of downtime. This also means that some ranks that were purchased in the last day or two will be removed and you will need to submit a support ticket to receive them back. If you lose your rank from these database migrations you can expect to have it back within the next day.