[Forums] Connection to external SQL Server database

David,

This is a generic connection error, so there is one of two problems:

1. The connection string is wrong or has some typo;
or
2. Your OutSystems Server can't connect with the external SQL Server;


Are you using instance names?
- If so, check if you have SQL Server Browser service running;

Did you check the firewall in your SQL Server machine?
- Create a rule for the instance service;
- Create a rule for the browser service;

Does your instance has TCP protocol enabled?
- If not, enable it.

Are you using the IP or the name of the SQL Server?
- If your are using the name make sure OS server can resolve it or try the IP

Are the 2 servers in the same network or domain?
Can you reach the SQL server instance from your machine through Management Studio?