There were one hundred TLS negotiations failures with incoming connections with the following remote peer on the Mediation ...

Lync Server 2010

There were one hundred TLS negotiations failures with incoming connections with the following remote peer on the Mediation Server Proxy side TLS endpoint.

Remote Endpoint: %1

Cause: The Proxy peer may not be configured correctly, for example the Proxy peer may not be configured to send connections to the port Mediation Server is listening to.  If this event fires multiple times in a short period for the same remote peer, the connections from this peer can be malicious connection attempts.
Resolution:
Check the Mediation Server and Proxy peer certificates are configured correctly.  Check if the MEDIATIONSERVER_MAJOR_CONFIGURATION_ALARM (Event ID: 25057) has been fired.  Check whether the remote endpoint a known peer.

There was an error while trying to create the new contact object in Active Directory. Make sure the account you are using ... There was an error while trying to load the configuration data. Make sure you are using a computer that has the OCS management ... There was no response from a gateway to an OPTIONS request sent by the Mediation Server. The Gateway peer, %1, is not responding ... There was no response from the Proxy peer to an OPTIONS request sent by the Mediation Server service. The Proxy peer, %1, ... There were one hundred TLS negotiations failures with incoming connections with the following remote peer on the Mediation ... There were one hundred TLS negotiations failures with incoming connections with the following remote peer on the Mediation ... These routes will not be used. First route name: %1 Second route name: %2 Cause: These two routes contain identical name ... This Access Edge Server has been disabled for sending archiving warning header on outgoing messages it processes. This means ... This Access Edge Server has been enabled for sending archiving warning header on outgoing messages it processes. This header ...