The Push Thread was requested for a range of records but could not find any records in the range. Make sure that the replication ...

The Push Thread was requested for a range of records but could not find any  records in the range. Make sure that the replication time intervals are set  properly. If the tombstone interval and timeout intervals are not correct  (that is, much less than the replication interval), the above condition is  possible. This is because the records might get changed into tombstones and  then deleted before the remote WINS can pull them. Similarly, if the refresh  interval is set to be much less than the replication interval then the records  could get released before a WINS can pull them (a released record is not sent).  Make sure that the replication time intervals are set properly.