Access SQL Server from a different subnet I'm creating a program which accesses MS SQL Server 2008, the problem is that I can run the program smoothly as an administrator account, even on different subnet computers and using terminal service (mstsc).  But the program can not successfully access SQL Server if using another account, even though I've already included the account into SQL permissions, Terminal Service configuration, add the Administrators user group.

On SQL Server Network Configuration - Protocol - TCP/IP is Enabled.

What am I forgetting to do?
If this is installed on a windows 2008 server then you will need to check that the firewall is either disabled (not recommened) or that there is a firewall rule for the SQL port (1433 for default instance, 1434 and whatever is configured for a named instance).