Issue with login on service desk plus Standard

Hi,

i have an issue connecting to servicedesk plus standard edition with administrator login.

I had enable AD authentication, when i logout form the application and tried to login again i have the message: "User name or password not correct"

So, connecting via psql (i have postgress database) i have used the queries found on this forum to reset administrator login password. Seems that it works but when i try to access with local authentication i have again the error. "User name or password not correct".

So i used the query to restore local authentication (i already have it, but i have tried). Results that i does not have anymore the option to choose the domain (so i think that works only local authentication). Tried to login and i have again the error: "User name or password not correct".

Tried to reset again the administrator login password but doesn't work.

Is it possibile that having a user named "administrator" in the requester that i have imported it's in conflict whit administrator login of servicedesk plus?

how can i solve this issue?

thanks and best regards