I'm having trouble connecting to "SQL Sever Authentication."
When I installed the program in the Database Engine Configuration part I selected mixed authentication mode, this created me an administrator "CRONOPIO \ Lucas (Lucas)" but when wanting to login from the SQL I get the error :
Can not connect to CRONOPIO. Login failed for user 'Cronopio \ Lucas'. (Microsoft SQL Sever Error: 18456.
I also tried logging in simply by using "Lucas" but still I get the error. There are no problems when logging in with Windows authentication but I need to do a job and it is necessary to log in with SQL.