my problem here is very weird compared to other that I found on this forum. The VB program is created with VS2010 from computer "A". It work perfectly. Connection to SQL Server and MYSQL DB. But when I copy the whole file to computer "B" where SQL Server is installed and is used by the program I mentioned before. SO I open with the VS 2010 and debug the program. This time the program can't connect to database. Error " No connection to database. Error trying to connect to user "user" ". Where "user" is the name of user.
FYI, everything maintain the same, IP, username, password, database. Only the location I open the proggram. Besides, I also check the firewall, mssql,ssma but still no connection.
What could cause this type of problem? Thanks in advance.