Kraken and gadu gadu

Openfire 3.7.1 and Kraken 1.1.3beta3

When i tested connection to gadu gadu server from admin panel all looks ok. But when i try to connect via client (spark or PSI) i have alert: unable to establish connection. Where is the problem.

The gadu gadu user is registred on server and works fine on dedicated gadu gadu klient