Setting Network 2 PC Only

I have create Stock using VB 6.0 and database : MySQL and for connection I use ODBC, but when I want to set ODBC from 1 PC to source PC the error mesages are : Return to SQL Error and obviously the connection cannot be made. I have Checked file and printers sharing , everything just fine, also check the TCP and Workgroup also right no false...... (for Informastion MySQL Server using port 3306)
so my question is : is there any setting or other setting beside TCP/IP and Workgroup to make the connection working.....?