Since you can get in game, you can type
Code:
#logs set console 33 3
and it will give you a detailed report of all efforts happening while logging in. It's very spammy though.
Try setting that command prior to a hotfix, and see what a successful login looks like.
Then do the #hotfix, and see how it differs when you do a failed login.
Logging System overhaul notes:
http://wiki.eqemulator.org/p?Logging_System_Overhaul
I think if world is exited/restarted the spammy detailed report log setting is removed, but just in case you want to revert it manually:
Code:
#logs set console 33 1
to set it to normal logging level
or
Code:
#logs set console 33 0
to remove logging messages