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Small and medium business | Business Central, N...
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Could not connect to the SQL database

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Posted on by Microsoft Employee

SYMPTOM:

When we install Business Central to the server, you might receive the following error messages:

SQL Server Database Components
Cronus Sample Database for Microsoft Dynamics 365 Business Central
Fatal error during installation.

Could not connect to the SQL database.  (-2147467259   master      ). This can be caused by insufficient permissions. Indirect permissions through Windows group memberships may not work as expected when User Account Control (UAC) is turned on.
Web Server Components
Web Server Components
Fatal error during installation.

pastedimage1644327053835v1.png

Cause:

The problem was in the TLS 1.0 and 1.1

RESOLUTION:
After turning on the TLS  1.2, the installation was completed successfully.

Reference 

KB3135244 - TLS 1.2 support for Microsoft SQL Server

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