OWA Exception - Exchange Cluster Name Stolen

ERROR: While attempting to access OWA.. Outlook Web Access could not connect to Microsoft Exchange. If the problem continues, contact technical support for your organization.

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 Request

Url: https://email.domain.gov:443/owa/forms/premium/StartPage.aspx
User host address: XXX.XXX.XXX.XXX
User: Username
EX Address: /o=DOM/ou=Exchange Administrative Group (--)/cn=Recipients/cn=
SMTP Address: SMTP ADDRESSS
OWA version: 8.1.336.0
Mailbox server: MBX SERVER

Exception
Exception type: Microsoft.Exchange.Data.Storage.ConnectionFailedTransientException
Exception message: Event Manager was not created.

Call stack

Microsoft.Exchange.Data.Storage.EventPump..ctor(EventPumpManager eventPumpManager, String server, Guid mdbGuid)

Microsoft.Exchange.Data.Storage.EventPumpManager.GetEventPump(StoreSession session)

Microsoft.Exchange.Data.Storage.EventPumpManager.RegisterEventSink(StoreSession session, EventSink eventSink)

Microsoft.Exchange.Data.Storage.EventSink.InternalCreateEventSink[T](StoreSession session, EventWatermark watermark, ConstructSinkDelegate`1 constructEventSinkDelegate)

Microsoft.Exchange.Clients.Owa.Core.OwaFolderCountAdvisor..ctor(UserContext userContext, StoreObjectId folderId, EventObjectType objectType, EventType eventType)

Microsoft.Exchange.Clients.Owa.Core.OwaNotificationManager.CreateOwaFolderCountAdvisor(UserContext userContext, StoreObjectId folderId, EventObjectType objectType, EventType eventType)

Microsoft.Exchange.Clients.Owa.Premium.StartPage.OnInit(EventArgs e)

System.Web.UI.Control.InitRecursive(Control namingContainer)

System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Inner Exception
Exception type: Microsoft.Mapi.MapiExceptionNetworkError
Exception message: MapiExceptionNetworkError: Unable to make admin interface connection to server. (hr=0x80040115, ec=-2147221227) Diagnostic context: ...... Lid: 8600 dwParam: 0x721 Msg: EEInfo: ProcessID: 4208 Lid: 12696 dwParam: 0x721 Msg: EEInfo: Generation Time: 2008-12-02 16:23:58:282 Lid: 10648 dwParam: 0x721 Msg: EEInfo: Generating component: 3 Lid: 14744 dwParam: 0x721 Msg: EEInfo: Status: -2146893022 Lid: 9624 dwParam: 0x721 Msg: EEInfo: Detection location: 150 Lid: 13720 dwParam: 0x721 Msg: EEInfo: Flags: 0 Lid: 11672 dwParam: 0x721 Msg: EEInfo: NumberOfParameters: 3 Lid: 12952 dwParam: 0x721 Msg: EEInfo: prm[0]: Long val: 9 Lid: 12952 dwParam: 0x721 Msg: EEInfo: prm[1]: Long val: 6 Lid: 12952 dwParam: 0x721 Msg: EEInfo: prm[2]: Long val: 0 Lid: 24060 StoreEc: 0x80040115 Lid: 23746 Lid: 31938 StoreEc: 0x80040115 Lid: 19650 Lid: 27842 StoreEc: 0x80040115 Lid: 20866 Lid: 29058 StoreEc: 0x80040115

Call stack

Microsoft.Mapi.MapiExceptionHelper.ThrowIfError(String message, Int32 hresult, Int32 ec, DiagnosticContext diagCtx)

Microsoft.Mapi.ExRpcAdmin.Create(String server, String user, String domain, String password)

Microsoft.Exchange.Data.Storage.EventPump..ctor(EventPumpManager eventPumpManager, String server, Guid mdbGuid)

I've seen numerous things fix errors like this..  Resetting the Information Store (or verifying that it is started), or restarting the AD Topology Service and then the Information Store (one starts before the other, so creating a dependency would be a good idea) are both common fixes.  This problem was not fixed by either.

This particular issue seemed to only affect OWA Premium users, but not Lite users.  We also received sproadic reports of issues creating MAPI profiles.  

About an hour earlier, we had fixed a clustering issue where the network name was in a failed state.  After checking the event logs, it was obvious that the disaster recovery machine was stealing the network name after an SCR fail over was tested.

Event Type:        Error

Event Source:    ClusSvc

Event Category:              Network Name Resource

Event ID:              1214

Date:                     10/31/2006

Time:                     7:30:45 AM

User:                     N/A

Computer:          NODE1

Description:

Cluster Network Name resource 'Network Name (EXCHANGE)' cannot be brought online because the name could not be added to the system for the following reason: You were not connected because a duplicate name exists on the network. Go to System in Control Panel to change the computer name and try again.

Event Type:        Error

Event Source:    NetBT

Event Category:                None

Event ID:              4321

Date:                     10/31/2006

Time:                     7:45:23 AM

User:                     N/A

Computer:          NODE1

Description:

The name "EXCHANGE          :20" could not be registered on the Interface with IP address XXX.XXX.XXX.XXX. The machine with the IP address XXX.XXX.XXX.XXX did not allow the name to be claimed by this machine.

We had rebooted the SCR server to get Exchange up and working, but we had neglected to shut it down until it could be cleaned up.  The problem is that it came back up and caused problems with Exchange authenticating, and thus generated a number of Kerberos errors.  Upon checking, a coworker noticed that the DCs weren't showing up as accessible in the EMC.  After shutting down the SCR node completely and failing Exchange over, the DCs repopulated, and OWA worked.  The moral of the story is don't leave your SCR failbacks in an incomplete state, or you get the fun task of scheduling a new maintenance window to perform clean ups.