Solved
The login service is currently is unavailable.
Been trying to log in for a few days now. I have tried everything I can think of, but no luck. I'd love to play this game again, but I don't know what's going on. I haven't played on this account ...
apart from the usual causes like firewall and antivirus, there is a bug that displays the login unavailable when a displayname has characters not allowed like spaces and dots or numbers etc
