Lync Server ACP MCU service failed to establish session with ACP partner for conference. Conference:%1 Reason:%2 Cause: Possible ...

Lync Server ACP MCU service failed to establish session with ACP partner for conference.

Conference:%1
Reason:%2

Cause: Possible causes are connectivity issues with partner network.
Resolution:
Check to see there are no connectivity or certificate configuration issues with the ACP partner
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