Mailbox Migration Wizard Error

[OnDeBanks]

Hi,
I'm migrating an Exchange 5.5 Server on an NT domain to an Exchange 2003 server on a new Windows 2003 domain. I have established trusts and migrated users and exchange directories to the new Exchange 2003 server but when I try
to export mailboxes I get the following error:
"Unable to log on to the server. Please verify the server name, port, account name and password"

I have all this information correct and I have tried changing the LDAP port on the 5.5 server to 390 but it still won't work.
I'm at a dead end at the moment can anyone help me?

 

[NetworkGuy101]

Are you using the Exchange Servers Maintenance account or an Domain Admin account for the new exchange server setup?

 

[OnDeBanks]

I was using the Domain admin account on the NT domain, but changed it to Windows 2003 domain admin account which I had previously added to the NT domain and this worked when I changed the LDAP port back to 389.

I'm having other problems now when migrating the mailbox it comes up with errors as in Microsoft KB865507

http://support.microsoft.com/kb/q867507

but the fix listed in the article doesn't fix the problem.

 

[NetworkGuy101]

Make sure you are using the Exhcnage System Account for the old server on the new. I dont think it is a port problem. It is most likely an account with no priveldges.