Extremely Slow Mailbox move between Exchange 2007 and Exchange 2013

I am trying to migratemailboxesfromanExchange 2007 withall roleson a single servertoa newExchange2013server environment.Where Ihavetwo serverswith both rolesinstalled. I also have aDAG.

My problemis that it takesan extremely long timeto move largemailboxes(2 GB andlarger). I useEACfor mailboxmove.Smallmailboxes arenot a problem.

I've foundif I restartthe MicrosoftExchange MailboxReplicationServicemovedsomemailagainbut thenit hangs again.

Does anyone haveany ideawhere the problem lies.I cannot holdonto restart the service all the timethen willthe migrationtake monthsto complete.It's asmall organization.

For information, I runthe following commandswithout success (KB951037).

• netsh int tcp set global chimney=disabled
  netsh int tcp set global rss=disabled
  netsh int tcp set global autotuninglevel=disabled

Then rebooted the servers.

Michael Wiskman