Lync Server archiving agent is unable to deliver message to its destination queue in a timely fashion. Queue: %1 Acknowledgement ...

Lync Server archiving agent is unable to deliver message to its destination queue in a timely fashion.


Queue: %1 
Acknowledgement class: %2. 
%3
Cause: This can occur if network connectivity to the Archiving Server is unavailable. Messages are queued locally until the connection is restored.
Resolution:
Verify that the network connections to the associated Lync Server Archiving Server are operating correctly.