It's the same issue they said they were working on to fix which was why we had maintenance last night.
The issue seems to be still at hand. it's been twice already since they had 2 Maintenance's resolving around the same issue.
Also i believe the Color ribbon to the top left has something to do with you being able to log in or not.
Right now the only server which has a green Ribbon is the NA and i think thats because thats the only server where its evening and not night time. since the other servers are located in EU where it just was midnight a few hours ago.
Whatever it is, i don't think it will be playable until later on close to lunch
[UPDATE]
Alright, the disconnection error is occurs because of the ribbon top left of the server
White = Servers Down (Disconnection error 35)
Green = Server up