The Quality-Metric server cannot be contacted. Mediation server will keep trying; however additional failures will not be ...

The Quality-Metric server cannot be contacted. Mediation server will keep trying; however additional failures will not be logged.

QoE Agent: %1
QoE GRUU: %2

Cause: Either the Quality-Metric server is not running or unreachable.
Resolution:
Verify that Quality-Metric server is reachable from the computer running Lync Server.