Agent Authentication Failure after reinstalling Endpoint server.

Products

• Data Loss Prevention Endpoint Prevent

Issue/Introduction

With DLP 12.5 (or newer), Reinstalling an Endpoint server that has existing Endpoint Agents results in Authentication errors within Agents Overview Authentication Failure: Incorrect Tool Key is used during communication

Cause

Endpoint .jks files were not backed up during reinstallation of the Endpoint server

Resolution

Copy the endpoint .jks file off of another Endpoint server.   .jks files are located in \SymantecDLP\Protect\Keystore directory.
Restart the Vontu Monitor service once you copy the missing keystore files to the reinstalled Endpoint server.