Error Code ACF37E18 When Connecting Tableau Desktop to Tableau Server

Published: 03 Nov 2023
Last Modified Date: 03 Nov 2023


When connecting Tableau Desktop to Tableau Server, the following error may occur:

Unable to complete action
Cannot connect to Tableau Server. Please check the server name and port and try again
Error Code: ACF37E18
Operation timed out.


  • Tableau Desktop
  • Windows


Try the following options:

Option 1 - Configure Tableau Desktop to use the embedded browser when signing in to Tableau Server

See Default Browser Used instead of Embedded Browser For Sign-in to Tableau Server from Tableau Desktop.

Option 2 - Add the Tableau Server URL to the Trusted Sites zone on the Tableau Desktop computer

1. Go to Control Panel > Network and Internet > Internet Options.
2. Select the Security tab.
3. Select 'Trusted sites' > Sites.
4. In the 'Add this Web site to the zone' box, enter the URL of the Tableau Server instance that you trust, and then click 'Add'.
5. Click 'Close' and 'OK'.


When authenticating using the default browser, the Tableau Server instance needs to be in the Trusted Sites zone.
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