Applications • SQL Checker Script TLS 1.2 Compatibility Fix - SQLOLEDB.1 to MSOLEDBSQL Provider Update

Hi,

these are our findings after some successful troubleshooting.

Problem:
When using the built-in Veeam.Backup.SqlChecker.vbs script in SureBackup with SQL Authentication on SQL Servers that have disabled legacy protocols (SSL, TLS 1.0), the connection fails with:

Error:
[DBNETLIB][ConnectionOpen (SECCreateCredentials()).]SSL Sicherheitsfehler

Root Cause:
The script uses the outdated SQLOLEDB.1 provider which doesn't properly support TLS 1.2.

Solution:
Modify the CheckInstance subroutine in the script to use the modern MSOLEDBSQL provider:

Find this line (around line 159):Replace with:Prerequisites:
Microsoft OLE DB Driver 19 for SQL Server must be installed on the Veeam server

Tested Configuration:
Veeam B&R 12
SQL Server 2014/2016+ with TLS 1.0/SSL disabled
Custom Application Group script with SQL Authentication
Works with both named instances (SERVER\INSTANCE) and default instances

Usage in SureBackup:
Configure as Custom Script in Application Group:
Path: %ProgramFiles%\Veeam\Backup and Replication\Backup\ModifiedSqlChecker.vbs
Arguments: %log_path% %vm_ip%\INSTANCENAME username password

Using the instance name also solves the sc problem, when connecting with a user whithout local admin rights on the SQL Server.

Statistics: Posted by mwgbr — Jun 20, 2025 9:56 am

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