Connection to Tamino using SQL

I installed Tamino on PC.
Then I created database (SQL “type”) ‘mydb’ and imported tables from examples. I’m able to connect to this database using Direct SQL Utility (command: connect to ‘mydb’ user SAGTOURS), but only from this PC, where the Tamino is installed .
I’m unable to connect to this database from other computer (also using Direct SQL Utility.). Returned message is “1454(E): client server interface send error”.
I’m able to connect to this DB using ODBC…
What I do wrong?