Recently, I was working on an Exchange where Mailboxes were migrated from Exchange 2010 to Exchange 2010. The old server was dying, and hence the client turned that server off. Everything started to work fine, however when the users tried to reconfigure their phones, it failed. After further checking on the issue, I noticed that only the users who had their phones previously configured with their work email, are failing to configure. If we try to configure a new phone with the same account it works. Hence, I started to further look on the new Exchange 2010 Server to find out the issue.
FYI: I checked online for suggestions, and a number of people suggested to remove the ActiveSync Partnership from the exchange server. I did so, however it did not resolve the issue at all.
What did I found on Server? I noticed that the server is showing the following warning for all users multiple times:
Log Name: ApplicationSource: MSExchange ActiveSyncDate: 3/2/2015 6:45:50 AMEvent ID: 1008Task Category: RequestsLevel: WarningKeywords: ClassicUser: N/AComputer: Exchange.Domain.LocalDescription:An exception occurred and was handled by Exchange ActiveSync. This may have been caused by an outdated or corrupted Exchange ActiveSync device partnership. This can occur if a user tries to modify the same item from multiple computers. If this is the case, Exchange ActiveSync will re-create the partnership with the device. Items will be updated at the next synchronization.URL=/Microsoft-Server-ActiveSync/default.eas?User=smcculley&DeviceId=Appl*Removed*&DeviceType=iPhone&Cmd=Sync— Exception start —Exception type: Microsoft.Exchange.Data.Storage.InvalidSyncStateVersionExceptionException message: Sync state ‘Policy’ loaded from the user’s mailbox has a newer version ’37’ than the Client Access server version ’35’. Please update the Client Access server to the latest version.Exception level: 0Exception stack trace: at Microsoft.Exchange.Data.Storage.SyncState.Load(Boolean reloadFromBackend, PropertyDefinition additionalPropsToLoad)at Microsoft.Exchange.Data.Storage.CustomSyncState.GetSyncState(SyncStateStorage syncStateStorage, Folder syncStateParentFolder, SyncStateInfo syncStateInfo, StoreObjectId storeObjectId)at Microsoft.Exchange.Data.Storage.SyncStateStorage.GetCustomSyncState(SyncStateInfo syncStateInfo)at Microsoft.Exchange.AirSync.GlobalInfo.LoadFromMailbox(MailboxSession mailboxSession, SyncStateStorage syncStateStorage, ProtocolLogger protocolLogger)at Microsoft.Exchange.AirSync.Command.OpenSyncStorage(String deviceType, String deviceID, Boolean shouldOpenGlobalSyncState)at Microsoft.Exchange.AirSync.Command.WorkerThread()— Exception end —
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