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SQL Installation error 27502 – 0


Error 27502. Could not connect to Microsoft SQL Server ‘(local)\SQLExpress14’. Invalid authentication specification (0)

[NL] Ongeldige autorisatiegegevens

[FR] Spécification de permission non valide


  1. Click ‘Ok’
  2. Cancel the setup
  3. Run the Gateway setup again
  4. Select existing database instance => the one you just have installed (in the above printscreen : SQLEXPRESS14BS)

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