I got an email from tech support at Cyberstreet*. According to the message the ENWorld server had something called a "root-kit" and was engaged in DOS attacks. At the time the email was sent they expected to have the server back up in a couple of hours. It took a bit longer.
Expect CS to tighten their security for the ENWorld and other servers, which might mean some downtime later on.
*I asked a question of Cyberstreet tech support earlier this month (miscommunication between CS and the Admiral) and somehow I became Cyberstreet's contact for ENWorld. If that's the case, I'm going to need contact information for certain parties (you know who you are) and a raise. 1,000,000% of what I'm getting now should suffice.

(I'll explain the gag if you email me.

)