Did you do a server upgrade recently?
We did not, no. I will double check though.
I have had this come up after an upgrade before. Although the SQL driver came with the default install, I just went onto the relevant version of the Server and installed it again. Let me know if that doesn't resolve your issue.
I had the extract refresh issue with 10.5, although I do not exactly remember if its the same error message but yes Microsoft SQL Server driver had to be updated for 10.5 version and we are using 11.3.6020.0 currently which is working well so far.
Prem are you using that 11 version for a 10.5 server? I appreciate the answers, all! Almost there!
Yes Charlotte, we are using 11 version for 10.5 server and I myself tested the compatibility of the drivers by trying to connect from Tableau Desktop where I figured out that previous versions of SQL server drivers were not letting me have successful connection.