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To force DSM to connect to SQL servers using TCP:
  1. Open the ..\Trend Micro\Deep Security Manager\webclient\webapps\ROOT\WEB-INF\dsm.properties file.
  2. Add the following line:
    database.SqlServer.namedPipe=False
  3. Save and close the file.
  4. Restart the DSM services.
DSM will now use TCP instead of Named Pipes.