I have been using SQL Server databases as inputs and outputs to DataManager blocks with no problems at all. I upgraded to 2.7b350 today and the DataManagers I have with SQL Server connections inside will no longer connect. In 2.6, by default when you add a data block, set it to SQL Server it sets the port to 1443 (in 2.7 it leaves it at 0). I set the connection parameters exactly the same as I do in 2.6 and I cannot connect to the server let alone get to the database. Has anything fundamentally changed with the database block in DataManager?
Yes 1433 is the default port for SQL server. Please try changing it and see if that works. It appears that there is a bug where the port number is not automatically populating with the default. We will fix this immediately.