Hi there, @ToddAndMargo.
It's my pleasure to provide some information about SQL servers.
Microsoft SQL Server is a relational database management system developed by Microsoft. As a database server, it is a software product with the primary function of storing and retrieving data as requested by other software applications.
With that said, I wanted to provide our system requirements help article that covers what QuickBooks does and does not support for you to reference.
Per our requirements, the SQL server is not supported. However, when using an SQL server, you can check with your IT professional for any additional information on connection concerns.
I'm always around to lend a hand. It's been great chatting with you. Take care!