Tried again today. First, I went to Legends of Aria to make sure that was working. It did, and I was able to log in and do a mission and go to the bank and all so it seemed fine. Went back out and restarted the Aria client from scratch. Tried to log in to Shards of Britannia and it worked. For some reason it allowed me to log in today even though I couldn't last night. Maybe the server was still coming back up after an outage last night. Anyway, it seems to work today.