How To: Validate TLS 1.2 connections for ArcGIS Desktop
This workflow and test URL are provided to perform a quick validation check to ensure that ArcGIS Desktop systems work for TLS 1.2-only connections to ArcGIS Online.
The URL provided here is not for testing all ArcGIS Online capabilities. It has been provided specifically for the Desktop client validation workflow described below.
Launch ArcGIS Administrator on any machine running ArcGIS Desktop version 10.6.1 or below. In the ArcGIS Administrator panel, click the Advanced button.
In the Advanced Configuration dialog, click Manage Portal Connections.
In the Manage Portal for ArcGIS Connections dialog, click Add.
In the Add Portal for ArcGIS dialog, add the ArcGIS Online connection for the TLS 1.2 test endpoint: https://www-tlstest.arcgis.com/
Click OK, and in the Manage Portal for ArcGIS Connections dialog, select the new connection, and click Connect.
Click Save in the Advanced Configuration dialog to save the new connection setting, and click OK to close ArcGIS Administrator. Launch ArcCatalog (not ArcMap). On the Windows tab of the ArcCatalog main menu, click Search.
From the search options drop-down, select ArcGIS Online.
Enter some text in the Search field, for example, states, as shown in the image below, and click the magnifying glass icon.
If an error message similar to the following is returned:
The underlying connection was closed: An unexpected error occurred on a send.
Apply the ArcGIS Desktop TLS patch, see How To: Install the TLS 1.2 patch on ArcGIS Desktop Repeat Steps 9 and 10 above, and ensure that you can add data from ArcGIS Online.
If a connection failure does not occur, the validation is complete and ArcGIS Desktop is set to work with ArcGIS Online through TLS 1.2 connections.
Once the connection to the test portal has been confirmed, be sure to reset the Portal for ArcGIS Connection back to http://www.arcgis.com/, or whatever default connection that is normally used (Step 6).
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