SQL Server - Invalid Argument Supplied
问题 So we have SQL Server 2008 R2 Express running on a local server, and a bunch of machines on the same LAN use a program I wrote in C# to access said server. All the machines in the building except one can connect quite happily. Connection string is: Data Source=[IP address here],53535\SQLEXPRESS;Initial Catalog=EMS_Main;;User ID=EMSUser;Password=[password here]; Exact error message is: "A network-related or instance-specific error occurred while establishing a connection to SQL Server. The