This article explains the BarTender error message “BarTender: Error Message #6670 Failed to connect to a database: Unknown error 0x800A0E7A” and details how to fix the underlying problem that caused it to appear.
A label configured to connect to a database is unable to connect to it. Potential problems causing this can be that a change in database or labeling file requires and update or a driver is missing or corrupt.
Use the Database Setup wizard to update the database settings.
Issue Found On: Windows 2008 R2, BarTender v10.1
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