KB483288: Connection to ESRI resets in Web although the connection between the web server machine and the ArcGIS servers is available

Symptom

Even if you have followed article KB46526, and the connection between Strategy Web Server and the ArcGIS servers is available, you may get the following error when using ESRI in Strategy Web:
 
com.Strategy.utils.cache.cacheexception: Connection reset

Cause

ArcGIS introduced some changes on April 16, 2019 and ArcGIS online services only accepts connections using TLS 1.2 (source).
You may get the above error if you are using JDK 1.7 or earlier for Strategy Web Server.

Action

You can use either of the following solutions to solve the problem:

1. Upgrade JDK to v1.8 or later which supports TLS 1.2. (ESRI FAQ: How do I enable TLS 1.2 for ArcGIS Runtime SDK for Java?)
2. Add clientToken="true" to the esriconfig.xml file, as suggested in article KB202342.
   Once clientToken is set to "true", the authentication process between Strategy and ESRI will be handled by the browser only. Since most modern web browsers support TLS 1.2, the change will also solve the problem.
   

Related:

• Integration with ESRI Maps
• ESRI Configuration File