Existing ODBC connections stopped working

As of Dec 7, 2022, there is a known issue caused by a recent Windows Update that may affect your UnitySync connections that use a source or destination ODBC DSN.

Microsoft reported the bug here: Database connections using Microsoft ODBC SQL Server driver might fail

If you have a UnitySync connection using an odbc source or destination, your sync may be affected. Please check your Windows Update status.

This article will be updated as soon as new information is available.

Bleeping Computer - November updates break ODBC database connections