There was a power outage this morning that caused the server machine to turn off. To prevent system-melting restart loops, the machine is set to not auto-restart on power restoration, so it was out for a few hours before I woke up and turned it back on. Unfortunately, it doesn't appear that the server came back up properly or the router needed an ass-kicking as well, and it continued to sit there uselessly for a few more hours until I realized the machine was down while at work. The server's back up now (since you're reading this). It looks like everyone found the chat again via the Meebo listings, so that's a good thing.
Anyway, everything's fine, nothing is broken.