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A Basic Application Could Not Be Started Wincc 75 Best Jun 2026

C:\Program Files (x86)\Siemens\WinCC\Diagnostics\BasicApplication.log

tool and click "Repeat Settings" to ensure all necessary firewall and DCOM settings are correctly applied. 4. Check Licensing and Permissions a basic application could not be started wincc 75 best

If the above steps fail, users in the Siemens Support Forum suggest checking for software conflicts, such as having and WinCC V7.x installed on the same machine, which are often incompatible. a basic application could not be started wincc 75 best

WinCC 7.5 uses SQL Server for its tag logging and alarm logging archives. If the SQL Server instance (usually WinCC ) is stopped, the basic application cannot initialize the database connection. a basic application could not be started wincc 75 best

WinCC relies heavily on internal network communication (even on a single PC) using SQL Server and DCOM. Windows Defender Firewall or third-party antivirus software often blocks these "local loopback" communications after a Windows Update.

C:\Program Files (x86)\Siemens\WinCC\Diagnostics\BasicApplication.log

tool and click "Repeat Settings" to ensure all necessary firewall and DCOM settings are correctly applied. 4. Check Licensing and Permissions

If the above steps fail, users in the Siemens Support Forum suggest checking for software conflicts, such as having and WinCC V7.x installed on the same machine, which are often incompatible.

WinCC 7.5 uses SQL Server for its tag logging and alarm logging archives. If the SQL Server instance (usually WinCC ) is stopped, the basic application cannot initialize the database connection.

WinCC relies heavily on internal network communication (even on a single PC) using SQL Server and DCOM. Windows Defender Firewall or third-party antivirus software often blocks these "local loopback" communications after a Windows Update.

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