Hi

We have the following error on a 2013 CAS that I cant seem to find any details on (see below).

CAS is part of a migration from EX2010 and sits behind TMG2010. All systems are working, CAS is passing traffic through to 2010 CAS.

Any help much appreciated.

Dan

Microsoft-Exchange-ManagedAvailability/Monitoring

 

ActiveSync is failing on ClientAccess server SERVER1. Incident start time: 26/04/2015 20:01:27 Last failed result: Failing Component - Failure Reason - Exception: System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index at System.Collections.Generic.List`1.get_Item(Int32 index) at System.Linq.Enumerable.ElementAt[TSource](IEnumerable`1 source, Int32 index) at Microsoft.Exchange.Monitoring.ActiveMonitoring.ActiveSync.Probes.ActiveSyncCustomerTouchPointProbe.GetMonitoringAccount() at Microsoft.Exchange.Monitoring.ActiveMonitoring.ActiveSync.Probes.ActiveSyncCustomerTouchPointProbe.DoWork(CancellationToken cancellationToken) at Microsoft.Office.Datacenter.WorkerTaskFramework.WorkItem.Execute(CancellationToken joinedToken) at Microsoft.Office.Datacenter.WorkerTaskFramework.WorkItem.<>c__DisplayClass2.<StartExecuting>b__0() at System.Threading.Tasks.Task.Execute() Diagnostic command: Invoke-MonitoringProbe -Identity:"ActiveSync\ActiveSyncCTPProbe" -Server:SERVER1 | fl

Monitor ActiveSyncCTPMonitor/ActiveSync

• Moved by Simon_WuMicrosoft contingent staff, Moderator Thursday, April 30, 2015 5:57 AM

I have no fix, but noticed the same error message on our Exchange (part of a 3 member DAG). Seems to be going on for several days now.