Log Name: Office Communications Server
Source: OCS Response Group Service
Event ID: 31017
Task Category: OCS Response Group Service
Computer: <Computer name>
Unable to subscribe to the agent presence.
Cause: Networking problems with the Front End server or a misconfigured Front End server.
Verify that you have connectivity with the Front End server.
Article ID: 2512216 - Last Review: Feb 14, 2017 - Revision: 1