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Invalid SQL Server parameters [Kaspersky Security for Microsoft Exchange Server]

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Advice and Solutions (Forum Knowledgebase) Disclaimer. Read before using materials.

Version: KSE for Microsoft Exchange Server versions 9.5.10000.64, 9.6.96.

Scenario: We have established a workaround to a problem with invalid SQL server parameters during its installation.

An error about invalid SQL server parameters occurred during the installation: "The server was not found or was not accessible. Verify that the instance name is correct, and that SQL Server is configured to allow remote connections. Error 26 - Error Locating Server/Instance Specified".


We have found the following information from installation log:


Installation log showed the SQL server "CRATER\SQLEXPRESS" was used for the installation:


We found that the configuration file "BackendDatabaseConfiguration*.config" which was used for configuring the SQL server was using the server name "CRATER".


If you're sure that "CRATER\SQLEXPRESS" is the real name of the SQL server,  replace "CRATER" in the SQL server name by "CRATER\SQLEXPRESS" in the following objects:

1. "X:\%KSE_Folder%\Configuration\BackendDatabaseConfiguration*.config" file.

If there are several such files in this folder, do it for all of them.

2. In the system registry "HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Kaspersky Lab\Kaspersky Security for Microsoft Exchange Server".

Parameter is BackendSqlServerName.

Start the upgrade again.

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