Authentication is failing - Please help

[jllort]

Are you using default OpenKM configuration or not ? In afirmative case:
1- stop jboss
2- go to /server/default/data/hypersonic and edit file OpenKM.script
Search okmAdmin you must see something like
INSERT INTO OKM_USER VALUES('okmAdmin','Administrator','21232f297a57a5a743894a0e4a801fc3', etc...
The '21232f297a57a5a743894a0e4a801fc3' is the 'admin' password replace yours for this.

[pavila]

Password not change automagically. Be sure you changed the hibernate.hbm2ddl property from create to none.

[jllort]

You might only have one application.url not two.
Which OpenKM version do you have ?
Password is encrypted and can not be decrypt, that the reason why I've provided the password "admin" is the text "'21232f297a57a5a743894a0e4a801fc3" in database.