Issue about report - Logon Failures

Issue about report - Logon Failures

We are now using ADAudit Plus paid edition. We meet a problem about “Logon Failures” report.

 When user try to login and failure once, we will found six records on the report with same time which also about the same logon failure. After check we found these six events are coming from two domain controller with different client port login.

My question is can “Logon Failures” in ADAudit Plus only log one event only instead of six? Many Thanks