I have been having login issues too since the recent server restart on Kronos III basically, it either sits there with "Connecting" or some time with "Authenticating", but it all ends after time with "Disconnected from server"
my realmlist file has in it:
set realmlist west.kronos-wow.com
I created another account trying to rule out that it is an account based issue and I still waiting for the automated email for verification of email address it been over 2 hours for that and nothing thus far.
I have since worked out it is not a client or network issue my end as I have been able to connect to another Vanilla WoW server with no problems.