How do I fix the error 'Named Pipes Provider, error 40 - Could not open a connection to' SQL Server'?
问题 I can\'t seem to connect to my database from a site. I get this error: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server I tried using the local IP address to connect as well as a public one. I\'ve tried: Yes, the site can communicate with the server Named pipes/TCP is enabled. Remote connections are allowed. Windows Firewall is off Created an exception for port 1433 in Windows Firewall. Enabled everything in SQL Server Configuration Manager. What else can I do here?