Cross Forest Migration 2007 to 2013 error New-MoveRequest
I am having an issue completing a move request in a cross-forest migration.  I was able to perform the Prepare move request and now trying to complete it with the following command and results:

  Import-Csv users.csv | New-MoveRequest -Remotelegacy -TargetDatabase Mailbox Database Name -baditemlimit 100 -acceptlargedataloss -RemoteGlobalCatalog SourceDomainName.local -TargetDeliverydomain TargetDomainName.local  verbose

  An Active Directory Error 0x51 occurred when trying to check the suitability of server "FQDN".  Error: Active Directory response: The LDAP server is unavailable.

  I have found many references to the AD error 51 and tried a lot of the fixes to no avail.  There is a 2 way trust, an AD account with permissions to complete the task, all pre-reqs met, etc.  I don't know where to continue to resolve this error as all of the articles and such I have found for assistance have not pointed me in the right direction.  Any suggestions would be greatly appreciated.
August 25th, 2015 11:39am

I don't see where you're passing credentials to the other forest's Exchange server, is there a reason for that?
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August 25th, 2015 12:40pm

No there isn't any reason for that.  However it prompts me for credentials, which I input then receive the error.
August 25th, 2015 3:07pm

Generally I believe you should use this syntax:

$Cred = Get-Credential
New-MoveRequest ... -RemoteHostName webmail.sourcecompany.com -RemoteCredential $Cred
Where the ellipsis is the rest of your parameters
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August 25th, 2015 3:25pm

Thanks for the reply, I am familiar with setting the credentials.  I was able to successfully perform both my Prepare-MoveRequest and New-MoveRequest scripts when performing the steps on my Exchange 2010 server.  So the above script ran when going from 2007 to 2010.  I am going to test if I can no migrate from the 2010 server to the 2013 server.
  • Proposed as answer by MatijaFX 10 hours 35 minutes ago
  • Unproposed as answer by MatijaFX 10 hours 35 minutes ago
August 25th, 2015 3:46pm

I think that for RemoteGlobalCatalog  parameter you need to specifies FQDN of GC server not just remote domain name
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August 25th, 2015 5:07pm

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