I registered for an account and followed all the steps, but I can't actually log into the client. Is the server only up during certain hours? I saw this linked in a City of Heroes group on Facebook and wanted to check it out!

Have you created an account from the game client itself?

The account DB for the game and this site are not connected.

Oh, I have not. I will do that! Thanks!

same problem
yes, I have created about 5 accounts from the client... none will let me in. All say "invalid user id or password"