The Web Conferencing Server client is trying to connect is not enabled Over the past %1 minutes Lync Server has failed attempts ...

The Web Conferencing Server client is trying to connect is not enabled

Over the past %1 minutes Lync Server has failed attempts to connect to disabled mcu host %2 time(s). The last such client which was disconnected is "%3"
Cause: The Web Conferencing Server client is trying to connect is not enabled
Resolution:
Verify Web Conferencing Server is enabled