Document created by RSA Information Design and Development Employee on Jun 13, 2017Last modified by RSA Information Design and Development Employee on Dec 4, 2020
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Message: Received unsupported request from agent “{3}” with IP address “{4}” in security domain “{5}”. Request type: “{18}”

Description: Received unsupported request.

Problem: The device is unsupported because there is no server interface to handle this type of network packet.



  1. Verify that the agent host uses a legacy authentication method from agents older than version 5.x. Authentication Manager only accepts agents from releases 5.x and higher.

  2. Contact the manufacturer of the user’s authentication device to find out if the device is eligible to upgrade to a 5.x or higher API.

  3. If the device is enabled for RADIUS, verify that the current version is compatible with the new RADIUS Access-Challenge, including New PIN Mode and Next Tokencode Mode.






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Table of Contents > Troubleshooting > Common Error Messages > 23002 Authentication Unsupported Protocol