Hi, I have already and successfully installed CAS and Hub servers but I received the following error when I attempted to install my mailbox server. Any assistance would be appreciated! The following server role(s) will be installed Mailbox Role Performing Microsoft Exchange Server Prerequisite Check Configuring Microsoft Exchange Server Preparing Setup COMPLETED Mailbox Server Role FAILED The following error was generated when "$error.Clear(); if (!$RoleIsDatacenter) { $arbUsers = @(get-user -Filter {lastname -eq "MSExchApproval 1f05a927-3be2-4fb9-aa03-b59fe3b56f4c"} -IgnoreDefaultScope -ResultS ize 1); if ($arbUsers.Length -ne 0) { $mbxname = $arbUsers[0].name; $mbxs = @( get-mailbox -arbitration -Filter {name -eq $mbxname} -IgnoreDefaultScope -resultSize 1 ); if ( $mbxs.length -eq 0) { $dbs = @(get-MailboxDatabase -Server:$RoleFqdnOrName -DomainController $RoleDomainController); if ($dbs.Length -ne 0) { enable-mailbox -Arbitration -identity $arbUsers[0] -database $dbs[0].Identity; } } } } " was run: "Active Directory operation failed on dc01.domain.intern. This error is not retriable. Additional information: The name reference is invalid. This may be caused by replication latency between Active Directory domain controllers. Active directory response: 000020B5: AtrErr: DSID-03152392, #1: 0: 000020B5: DSID-03152392, problem 1005 (CONSTRAINT_ATT_TYPE), data 0, Att 200ab (homeMTA) ". The Exchange Server setup operation didn't complete. More details can be found in ExchangeSetup.log located in the <SystemDrive>:\ExchangeSetupLogs folder. Exchange Server setup encountered an error. ------------------------------------------ also i have Eventid 1002 Log Name: Application Source: MSExchangeSetup Date: 10/26/2011 8:02:50 PM Event ID: 1002 Task Category: Microsoft Exchange Setup Level: Error Keywords: Classic User: N/A Computer: DE01EXC.local.domain.intern Description: Exchange Server component Mailbox Role failed. Error: Error: The following error was generated when "$error.Clear(); if (!$RoleIsDatacenter) { $arbUsers = @(get-user -Filter {lastname -eq "MSExchApproval 1f05a927-3be2-4fb9-aa03-b59fe3b56f4c"} -IgnoreDefaultScope -ResultSize 1); if ($arbUsers.Length -ne 0) { $mbxname = $arbUsers[0].name; $mbxs = @( get-mailbox -arbitration -Filter {name -eq $mbxname} -IgnoreDefaultScope -resultSize 1 ); if ( $mbxs.length -eq 0) { $dbs = @(get-MailboxDatabase -Server:$RoleFqdnOrName -DomainController $RoleDomainController); if ($dbs.Length -ne 0) { enable-mailbox -Arbitration -identity $arbUsers[0] -database $dbs[0].Identity; } } } } " was run: "Active Directory operation failed on dc01.domain.intern. This error is not retriable. Additional information: The name reference is invalid. This may be caused by replication latency between Active Directory domain controllers. Active directory response: 000020B5: AtrErr: DSID-03152392, #1: 0: 000020B5: DSID-03152392, problem 1005 (CONSTRAINT_ATT_TYPE), data 0, Att 200ab (homeMTA) ". Active Directory operation failed on dc01.domain.intern. This error is not retriable. Additional information: The name reference is invalid. This may be caused by replication latency between Active Directory domain controllers. Active directory response: 000020B5: AtrErr: DSID-03152392, #1: 0: 000020B5: DSID-03152392, problem 1005 (CONSTRAINT_ATT_TYPE), data 0, Att 200ab (homeMTA) A value in the request is invalid. Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="MSExchangeSetup" /> <EventID Qualifiers="0">1002</EventID> <Level>2</Level> <Task>1</Task> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2011-10-26T18:02:50.000000000Z" /> <EventRecordID>2202</EventRecordID> <Channel>Application</Channel> <Computer>DE01EXC.local.domain.intern</Computer> <Security /> </System> <EventData> <Data>Mailbox Role</Data> <Data>Error: The following error was generated when "$error.Clear(); if (!$RoleIsDatacenter) { $arbUsers = @(get-user -Filter {lastname -eq "MSExchApproval 1f05a927-3be2-4fb9-aa03-b59fe3b56f4c"} -IgnoreDefaultScope -ResultSize 1); if ($arbUsers.Length -ne 0) { $mbxname = $arbUsers[0].name; $mbxs = @( get-mailbox -arbitration -Filter {name -eq $mbxname} -IgnoreDefaultScope -resultSize 1 ); if ( $mbxs.length -eq 0) { $dbs = @(get-MailboxDatabase -Server:$RoleFqdnOrName -DomainController $RoleDomainController); if ($dbs.Length -ne 0) { enable-mailbox -Arbitration -identity $arbUsers[0] -database $dbs[0].Identity; } } } } " was run: "Active Directory operation failed on dc01.domain.intern. This error is not retriable. Additional information: The name reference is invalid. This may be caused by replication latency between Active Directory domain controllers. Active directory response: 000020B5: AtrErr: DSID-03152392, #1: 0: 000020B5: DSID-03152392, problem 1005 (CONSTRAINT_ATT_TYPE), data 0, Att 200ab (homeMTA) ". Active Directory operation failed on 01.domain.intern. This error is not retriable. Additional information: The name reference is invalid. This may be caused by replication latency between Active Directory domain controllers. Active directory response: 000020B5: AtrErr: DSID-03152392, #1: 0: 000020B5: DSID-03152392, problem 1005 (CONSTRAINT_ATT_TYPE), data 0, Att 200ab (homeMTA) A value in the request is invalid. Thx 4 Help!

Hi, Regarding to the error messages, I would like to provide below suggestion for you: 1 Adding Exchange server to Exchange Subsystem group. 2 Made PDC(Primary DC) as GC. 3 Run the command line version of the Setup program which allow us to specify a local domain controller to use to read and write our changes toactive directory. We use the command below. setup.com /mode:install /role:mailbox /DomainController:ad.contoso.com /InstallWindowsComponentsBest Regards!

Hello Rowen-Xu, thank you for your reply! The problem is solved. After a view hours, the installation was successful. It was a replication delay between the root DC’s.. have a nice day.. Jan