When trying to connect to a SQL Server Express I get this error: 

Connection String test failed: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)

Checked and recheck the options and credentials and everything seems ok. 

The Outsystems and SQL Server are in the same machine but we have a router that we cannot control or configure, so it might be blocking something. 

Hello Fernando,

Is the TCP/IP protocol enabled? 

You can check it in the SQL Server Configuration Manager.



Yep! Enabled!

I had also same problem

Hi All,

Is this the error you get when installing the OutSystems Platform?

Kind Regards,
Martijn Habraken