Error "Server's certificate does not match the URL" When Connecting to Tableau Server from Tableau Desktop version 2021.1

Published: 02 Sep 2021
Last Modified Date: 08 Sep 2021


When trying to sign in Tableau Server from Tableau Desktop, an error occurs:

Cannot connect to Tableau Server. Please check the server name and port and try again

Server's certificate does not match the URL.


  • Tableau Desktop 2021.1 or later
  • Tableau Server 2021.1 or later


Work with your IT team to verify that the domain, host name, or IP address that is being used to connect to Tableau Server is included in the Subject Alternative Name (SAN) field, then update your Tableau Server's SSL certificate accordingly.


The SSL certificate on Tableau Server does not contain the Subject Alternative Name (SAN) extension. Starting from Tableau Desktop 2021.1, a security enhancement to adhere to current standards is introduced by Tableau. If the SAN in the SSL certificate is absent, the error will occur when trying to sign in Tableau Server.
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