Failed to create topology watcher. This is usually due to SQL connection failure. Microsoft Lync Server 2010, Master Replicator ...

Lync Server 2010

Failed to create topology watcher. This is usually due to SQL connection failure. Microsoft Lync Server 2010, Master Replicator Agent will continuously attempt to re-create topology watcher.

While this condition persists, configuration changes will not be delivered to new replica machines.
Back-end connection string: 
%1 Exception: 
%2
Cause: Possible issues with back-end database.
Resolution:
Ensure the back-end is functioning correctly.

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