Hi Mark,

I have set WireCrypt to Disabled/Enabled, the error changed to :
Error occurred during login, please check server firebird.log for details

When I read on firebird.log, here are the error :
Authentication error   No matching plugins on server

I guest i have to go back to FB 2.5, cause no solution to this matter that I can found on the net & I need to use Java to connect to FB.

Regards,
Anto