I have been using UniDac for years and I routinely connect to Firebird 3 and SQL Server databases (often at the same time).

I just updated from UniDac 9.3.0. to 9.4.0. Now I cannot connect to the same SQL Server databases I have been connecting to for years. This SQL Server is on my development machine.

I can run an older version of my software (using 9.3.0) and I can connect with no problems. I recompile the exact same program, but now with the new 9.4.0 Unidac installed and with nothing changed, I cannot connect. Firebird still works fine.

I get the error message

EUniError: [DBNETLIB][ConnectionOpen (Connect()).]SQL Server does not exist or access denied.

The UniConnection seems configured correctly, although I do leave the UserName/password fields blank as I am using Windows Authentication.

I can neither connect via software or the Designtime UniConnection screen.

I am using Windows authentication.

Any tips or is there some new configuration setting in the UniConnection that I need to know about?