Hi We encounter problem during installing E2K7 (MBX, CAS, HUB) withE2K3 coexistence. below is the error log that we encounter... [7/16/2007 3:44:45 PM] [2] Previous operation run on domain controller 'DC3.my'.[7/16/2007 3:44:45 PM] [2] [ERROR] There are multiple exchange servers matching the identity "E2K3". Please specify a unique value.[7/16/2007 3:44:45 PM] [2] Ending processing.[7/16/2007 3:44:45 PM] [1] The following 2 error(s) occurred during task execution:[7/16/2007 3:44:45 PM] [1] 0. ErrorRecord: There are multiple exchange servers matching the identity "E2K3". Please specify a unique value.[7/16/2007 3:44:45 PM] [1] 0. ErrorRecord: Microsoft.Exchange.Configuration.Tasks.ManagementObjectAmbiguousException: There are multiple exchange servers matching the identity "E2K3". Please specify a unique value. at Microsoft.Exchange.Configuration.Tasks.DataAccessTask`1.GetDataObject[TObject](IIdentityParameter id, IConfigDataProvider session, ObjectId rootID, Nullable`1 notFoundError, LocalizedString multipleFoundError) at Microsoft.Exchange.Management.SystemConfigurationTasks.ManageSendConnectors.TranslateTransportServers(MultiValuedProperty`1 transportServerIds, ADSystemConfigurationSession session, ObjectId rootId, GetServerDelegate`1 getServerDelegate, Boolean sourceTransportServers, MultiValuedProperty`1& transportServers, Boolean& isEdgeConnector) at Microsoft.Exchange.Management.SystemConfigurationTasks.NewRoutingGroupConnector.InternalValidate() at Microsoft.Exchange.Configuration.Tasks.Task.ProcessRecord()[7/16/2007 3:44:45 PM] [1] [ERROR] There are multiple exchange servers matching the identity "E2K3". Please specify a unique value.[7/16/2007 3:44:45 PM] [1] 1. ErrorRecord: There are multiple exchange servers matching the identity "E2K3". Please specify a unique value.[7/16/2007 3:44:45 PM] [1] 1. ErrorRecord: Microsoft.Exchange.Configuration.Tasks.ManagementObjectAmbiguousException: There are multiple exchange servers matching the identity "E2K3". Please specify a unique value. at Microsoft.Exchange.Configuration.Tasks.DataAccessTask`1.GetDataObject[TObject](IIdentityParameter id, IConfigDataProvider session, ObjectId rootID, Nullable`1 notFoundError, LocalizedString multipleFoundError) at Microsoft.Exchange.Management.SystemConfigurationTasks.ManageSendConnectors.TranslateTransportServers(MultiValuedProperty`1 transportServerIds, ADSystemConfigurationSession session, ObjectId rootId, GetServerDelegate`1 getServerDelegate, Boolean sourceTransportServers, MultiValuedProperty`1& transportServers, Boolean& isEdgeConnector) at Microsoft.Exchange.Management.SystemConfigurationTasks.NewRoutingGroupConnector.InternalValidate() at Microsoft.Exchange.Configuration.Tasks.Task.ProcessRecord()[7/16/2007 3:44:45 PM] [1] [ERROR] There are multiple exchange servers matching the identity "E2K3". Please specify a unique value.[7/16/2007 3:44:45 PM] [1] Setup is halting task execution because of one or more errors in a critical task.[7/16/2007 3:44:45 PM] [1] Finished executing component tasks.[7/16/2007 3:44:45 PM] [1] Ending processing.[7/16/2007 3:47:26 PM] [0] End of Setup[7/16/2007 3:47:26 PM] [0] **********************************************

Hi, How many exchange 2003 servers do you have? Have you checked in active directory users and computers that one or more of your exchange 2003 servers is not listed there more than once (could be caused by AD replication problems). Leif